diff --git a/polygerrit-ui/app/behaviors/async-foreach-behavior/async-foreach-behavior_test.html b/polygerrit-ui/app/behaviors/async-foreach-behavior/async-foreach-behavior_test.html
index 1adeb7c02a..1d50cc44f0 100644
--- a/polygerrit-ui/app/behaviors/async-foreach-behavior/async-foreach-behavior_test.html
+++ b/polygerrit-ui/app/behaviors/async-foreach-behavior/async-foreach-behavior_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>async-foreach-behavior</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/behaviors/base-url-behavior/base-url-behavior_test.html b/polygerrit-ui/app/behaviors/base-url-behavior/base-url-behavior_test.html
index 28f9ffdbda..61d7bacd42 100644
--- a/polygerrit-ui/app/behaviors/base-url-behavior/base-url-behavior_test.html
+++ b/polygerrit-ui/app/behaviors/base-url-behavior/base-url-behavior_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>base-url-behavior</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/behaviors/dom-util-behavior/dom-util-behavior_test.html b/polygerrit-ui/app/behaviors/dom-util-behavior/dom-util-behavior_test.html
index 7f3f2cbeba..1e842c18e5 100644
--- a/polygerrit-ui/app/behaviors/dom-util-behavior/dom-util-behavior_test.html
+++ b/polygerrit-ui/app/behaviors/dom-util-behavior/dom-util-behavior_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>dom-util-behavior</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/behaviors/gr-access-behavior/gr-access-behavior_test.html b/polygerrit-ui/app/behaviors/gr-access-behavior/gr-access-behavior_test.html
index aa16261ecc..c5f3f94891 100644
--- a/polygerrit-ui/app/behaviors/gr-access-behavior/gr-access-behavior_test.html
+++ b/polygerrit-ui/app/behaviors/gr-access-behavior/gr-access-behavior_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>keyboard-shortcut-behavior</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/behaviors/gr-admin-nav-behavior/gr-admin-nav-behavior_test.html b/polygerrit-ui/app/behaviors/gr-admin-nav-behavior/gr-admin-nav-behavior_test.html
index a1b6cbbd42..3f584998ab 100644
--- a/polygerrit-ui/app/behaviors/gr-admin-nav-behavior/gr-admin-nav-behavior_test.html
+++ b/polygerrit-ui/app/behaviors/gr-admin-nav-behavior/gr-admin-nav-behavior_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>keyboard-shortcut-behavior</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/behaviors/gr-change-table-behavior/gr-change-table-behavior_test.html b/polygerrit-ui/app/behaviors/gr-change-table-behavior/gr-change-table-behavior_test.html
index 39a4ea54bd..3c5aedd2a1 100644
--- a/polygerrit-ui/app/behaviors/gr-change-table-behavior/gr-change-table-behavior_test.html
+++ b/polygerrit-ui/app/behaviors/gr-change-table-behavior/gr-change-table-behavior_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>keyboard-shortcut-behavior</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/behaviors/gr-display-name-behavior/gr-display-name-behavior_test.html b/polygerrit-ui/app/behaviors/gr-display-name-behavior/gr-display-name-behavior_test.html
index fe78220445..fa72c4002e 100644
--- a/polygerrit-ui/app/behaviors/gr-display-name-behavior/gr-display-name-behavior_test.html
+++ b/polygerrit-ui/app/behaviors/gr-display-name-behavior/gr-display-name-behavior_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-display-name-behavior</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/behaviors/gr-list-view-behavior/gr-list-view-behavior_test.html b/polygerrit-ui/app/behaviors/gr-list-view-behavior/gr-list-view-behavior_test.html
index 2f2bae666c..80013bf5ef 100644
--- a/polygerrit-ui/app/behaviors/gr-list-view-behavior/gr-list-view-behavior_test.html
+++ b/polygerrit-ui/app/behaviors/gr-list-view-behavior/gr-list-view-behavior_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>keyboard-shortcut-behavior</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/behaviors/keyboard-shortcut-behavior/keyboard-shortcut-behavior_test.html b/polygerrit-ui/app/behaviors/keyboard-shortcut-behavior/keyboard-shortcut-behavior_test.html
index 737298310e..fcb7b4fb9b 100644
--- a/polygerrit-ui/app/behaviors/keyboard-shortcut-behavior/keyboard-shortcut-behavior_test.html
+++ b/polygerrit-ui/app/behaviors/keyboard-shortcut-behavior/keyboard-shortcut-behavior_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>keyboard-shortcut-behavior</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/behaviors/rest-client-behavior/rest-client-behavior_test.html b/polygerrit-ui/app/behaviors/rest-client-behavior/rest-client-behavior_test.html
index 04b154fb9f..980bc8faa6 100644
--- a/polygerrit-ui/app/behaviors/rest-client-behavior/rest-client-behavior_test.html
+++ b/polygerrit-ui/app/behaviors/rest-client-behavior/rest-client-behavior_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>keyboard-shortcut-behavior</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/admin/gr-access-section/gr-access-section_test.html b/polygerrit-ui/app/elements/admin/gr-access-section/gr-access-section_test.html
index ff19d4bee2..95345fed35 100644
--- a/polygerrit-ui/app/elements/admin/gr-access-section/gr-access-section_test.html
+++ b/polygerrit-ui/app/elements/admin/gr-access-section/gr-access-section_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-access-section</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/admin/gr-admin-group-list/gr-admin-group-list_test.html b/polygerrit-ui/app/elements/admin/gr-admin-group-list/gr-admin-group-list_test.html
index cf3ff5d530..c7ac2cbf0e 100644
--- a/polygerrit-ui/app/elements/admin/gr-admin-group-list/gr-admin-group-list_test.html
+++ b/polygerrit-ui/app/elements/admin/gr-admin-group-list/gr-admin-group-list_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-admin-group-list</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/admin/gr-admin-view/gr-admin-view_test.html b/polygerrit-ui/app/elements/admin/gr-admin-view/gr-admin-view_test.html
index 3387982e61..ec72bfd8b6 100644
--- a/polygerrit-ui/app/elements/admin/gr-admin-view/gr-admin-view_test.html
+++ b/polygerrit-ui/app/elements/admin/gr-admin-view/gr-admin-view_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-admin-view</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/admin/gr-confirm-delete-item-dialog/gr-confirm-delete-item-dialog_test.html b/polygerrit-ui/app/elements/admin/gr-confirm-delete-item-dialog/gr-confirm-delete-item-dialog_test.html
index 02d18a3de5..003edfbc58 100644
--- a/polygerrit-ui/app/elements/admin/gr-confirm-delete-item-dialog/gr-confirm-delete-item-dialog_test.html
+++ b/polygerrit-ui/app/elements/admin/gr-confirm-delete-item-dialog/gr-confirm-delete-item-dialog_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-confirm-delete-item-dialog</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/admin/gr-create-change-dialog/gr-create-change-dialog_test.html b/polygerrit-ui/app/elements/admin/gr-create-change-dialog/gr-create-change-dialog_test.html
index 4ce1855ea9..87105a74bc 100644
--- a/polygerrit-ui/app/elements/admin/gr-create-change-dialog/gr-create-change-dialog_test.html
+++ b/polygerrit-ui/app/elements/admin/gr-create-change-dialog/gr-create-change-dialog_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-create-change-dialog</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/admin/gr-create-group-dialog/gr-create-group-dialog_test.html b/polygerrit-ui/app/elements/admin/gr-create-group-dialog/gr-create-group-dialog_test.html
index 1ad13eadfd..164db53632 100644
--- a/polygerrit-ui/app/elements/admin/gr-create-group-dialog/gr-create-group-dialog_test.html
+++ b/polygerrit-ui/app/elements/admin/gr-create-group-dialog/gr-create-group-dialog_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-create-group-dialog</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/admin/gr-create-pointer-dialog/gr-create-pointer-dialog_test.html b/polygerrit-ui/app/elements/admin/gr-create-pointer-dialog/gr-create-pointer-dialog_test.html
index 394b1d8b38..2778d40568 100644
--- a/polygerrit-ui/app/elements/admin/gr-create-pointer-dialog/gr-create-pointer-dialog_test.html
+++ b/polygerrit-ui/app/elements/admin/gr-create-pointer-dialog/gr-create-pointer-dialog_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-create-pointer-dialog</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/admin/gr-create-repo-dialog/gr-create-repo-dialog_test.html b/polygerrit-ui/app/elements/admin/gr-create-repo-dialog/gr-create-repo-dialog_test.html
index a14a9c9713..dfab4ac772 100644
--- a/polygerrit-ui/app/elements/admin/gr-create-repo-dialog/gr-create-repo-dialog_test.html
+++ b/polygerrit-ui/app/elements/admin/gr-create-repo-dialog/gr-create-repo-dialog_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-create-repo-dialog</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/admin/gr-group-audit-log/gr-group-audit-log_test.html b/polygerrit-ui/app/elements/admin/gr-group-audit-log/gr-group-audit-log_test.html
index c7a41bfb28..45902205bf 100644
--- a/polygerrit-ui/app/elements/admin/gr-group-audit-log/gr-group-audit-log_test.html
+++ b/polygerrit-ui/app/elements/admin/gr-group-audit-log/gr-group-audit-log_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-group-audit-log</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/admin/gr-group-members/gr-group-members_test.html b/polygerrit-ui/app/elements/admin/gr-group-members/gr-group-members_test.html
index e7c4afde33..4dd9a7bc17 100644
--- a/polygerrit-ui/app/elements/admin/gr-group-members/gr-group-members_test.html
+++ b/polygerrit-ui/app/elements/admin/gr-group-members/gr-group-members_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-group-members</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/admin/gr-group/gr-group_test.html b/polygerrit-ui/app/elements/admin/gr-group/gr-group_test.html
index f06ffde07f..2a278da70f 100644
--- a/polygerrit-ui/app/elements/admin/gr-group/gr-group_test.html
+++ b/polygerrit-ui/app/elements/admin/gr-group/gr-group_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-group</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/admin/gr-permission/gr-permission_test.html b/polygerrit-ui/app/elements/admin/gr-permission/gr-permission_test.html
index 90c299c8b4..1ce492ed3b 100644
--- a/polygerrit-ui/app/elements/admin/gr-permission/gr-permission_test.html
+++ b/polygerrit-ui/app/elements/admin/gr-permission/gr-permission_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-permission</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/admin/gr-plugin-config-array-editor/gr-plugin-config-array-editor_test.html b/polygerrit-ui/app/elements/admin/gr-plugin-config-array-editor/gr-plugin-config-array-editor_test.html
index ecb2ec3fa9..5eff42da5d 100644
--- a/polygerrit-ui/app/elements/admin/gr-plugin-config-array-editor/gr-plugin-config-array-editor_test.html
+++ b/polygerrit-ui/app/elements/admin/gr-plugin-config-array-editor/gr-plugin-config-array-editor_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-plugin-config-array-editor</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/admin/gr-plugin-list/gr-plugin-list_test.html b/polygerrit-ui/app/elements/admin/gr-plugin-list/gr-plugin-list_test.html
index da626e9a5b..e2c88a2f1b 100644
--- a/polygerrit-ui/app/elements/admin/gr-plugin-list/gr-plugin-list_test.html
+++ b/polygerrit-ui/app/elements/admin/gr-plugin-list/gr-plugin-list_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-plugin-list</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/admin/gr-repo-access/gr-repo-access_test.html b/polygerrit-ui/app/elements/admin/gr-repo-access/gr-repo-access_test.html
index 4835dfe1a0..7d66cb0bbf 100644
--- a/polygerrit-ui/app/elements/admin/gr-repo-access/gr-repo-access_test.html
+++ b/polygerrit-ui/app/elements/admin/gr-repo-access/gr-repo-access_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-repo-access</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/admin/gr-repo-command/gr-repo-command_test.html b/polygerrit-ui/app/elements/admin/gr-repo-command/gr-repo-command_test.html
index c2606130bd..a73f071404 100644
--- a/polygerrit-ui/app/elements/admin/gr-repo-command/gr-repo-command_test.html
+++ b/polygerrit-ui/app/elements/admin/gr-repo-command/gr-repo-command_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-repo-command</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/admin/gr-repo-commands/gr-repo-commands_test.html b/polygerrit-ui/app/elements/admin/gr-repo-commands/gr-repo-commands_test.html
index 948eaa2a33..db2bfcfcf4 100644
--- a/polygerrit-ui/app/elements/admin/gr-repo-commands/gr-repo-commands_test.html
+++ b/polygerrit-ui/app/elements/admin/gr-repo-commands/gr-repo-commands_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-repo-commands</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/admin/gr-repo-dashboards/gr-repo-dashboards_test.html b/polygerrit-ui/app/elements/admin/gr-repo-dashboards/gr-repo-dashboards_test.html
index 8cae592416..dc12eff4a7 100644
--- a/polygerrit-ui/app/elements/admin/gr-repo-dashboards/gr-repo-dashboards_test.html
+++ b/polygerrit-ui/app/elements/admin/gr-repo-dashboards/gr-repo-dashboards_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-repo-dashboards</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/admin/gr-repo-detail-list/gr-repo-detail-list_test.html b/polygerrit-ui/app/elements/admin/gr-repo-detail-list/gr-repo-detail-list_test.html
index 0ec12acb20..9d7bba4e55 100644
--- a/polygerrit-ui/app/elements/admin/gr-repo-detail-list/gr-repo-detail-list_test.html
+++ b/polygerrit-ui/app/elements/admin/gr-repo-detail-list/gr-repo-detail-list_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-repo-detail-list</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/admin/gr-repo-list/gr-repo-list_test.html b/polygerrit-ui/app/elements/admin/gr-repo-list/gr-repo-list_test.html
index 62652bd2e4..96cb9fff30 100644
--- a/polygerrit-ui/app/elements/admin/gr-repo-list/gr-repo-list_test.html
+++ b/polygerrit-ui/app/elements/admin/gr-repo-list/gr-repo-list_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-repo-list</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/admin/gr-repo-plugin-config/gr-repo-plugin-config_test.html b/polygerrit-ui/app/elements/admin/gr-repo-plugin-config/gr-repo-plugin-config_test.html
index c2abef27f1..a2370d9fdb 100644
--- a/polygerrit-ui/app/elements/admin/gr-repo-plugin-config/gr-repo-plugin-config_test.html
+++ b/polygerrit-ui/app/elements/admin/gr-repo-plugin-config/gr-repo-plugin-config_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-repo-plugin-config</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/admin/gr-repo/gr-repo_test.html b/polygerrit-ui/app/elements/admin/gr-repo/gr-repo_test.html
index 1dccb7a8db..58b488a78b 100644
--- a/polygerrit-ui/app/elements/admin/gr-repo/gr-repo_test.html
+++ b/polygerrit-ui/app/elements/admin/gr-repo/gr-repo_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-repo</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/admin/gr-rule-editor/gr-rule-editor_test.html b/polygerrit-ui/app/elements/admin/gr-rule-editor/gr-rule-editor_test.html
index 052eb96f0a..f096eed30c 100644
--- a/polygerrit-ui/app/elements/admin/gr-rule-editor/gr-rule-editor_test.html
+++ b/polygerrit-ui/app/elements/admin/gr-rule-editor/gr-rule-editor_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-rule-editor</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change-list/gr-change-list-item/gr-change-list-item_test.html b/polygerrit-ui/app/elements/change-list/gr-change-list-item/gr-change-list-item_test.html
index f7361d2ac8..6b456183ac 100644
--- a/polygerrit-ui/app/elements/change-list/gr-change-list-item/gr-change-list-item_test.html
+++ b/polygerrit-ui/app/elements/change-list/gr-change-list-item/gr-change-list-item_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-change-list-item</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change-list/gr-change-list-view/gr-change-list-view_test.html b/polygerrit-ui/app/elements/change-list/gr-change-list-view/gr-change-list-view_test.html
index 33e70a068d..58ec4e188b 100644
--- a/polygerrit-ui/app/elements/change-list/gr-change-list-view/gr-change-list-view_test.html
+++ b/polygerrit-ui/app/elements/change-list/gr-change-list-view/gr-change-list-view_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-change-list-view</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change-list/gr-change-list/gr-change-list_test.html b/polygerrit-ui/app/elements/change-list/gr-change-list/gr-change-list_test.html
index c535600ca1..62763d9831 100644
--- a/polygerrit-ui/app/elements/change-list/gr-change-list/gr-change-list_test.html
+++ b/polygerrit-ui/app/elements/change-list/gr-change-list/gr-change-list_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-change-list</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change-list/gr-create-change-help/gr-create-change-help_test.html b/polygerrit-ui/app/elements/change-list/gr-create-change-help/gr-create-change-help_test.html
index d5b42a97ab..9b8ed2901d 100644
--- a/polygerrit-ui/app/elements/change-list/gr-create-change-help/gr-create-change-help_test.html
+++ b/polygerrit-ui/app/elements/change-list/gr-create-change-help/gr-create-change-help_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-create-change-help</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change-list/gr-create-commands-dialog/gr-create-commands-dialog_test.html b/polygerrit-ui/app/elements/change-list/gr-create-commands-dialog/gr-create-commands-dialog_test.html
index 620e6fe679..e6cd5870c3 100644
--- a/polygerrit-ui/app/elements/change-list/gr-create-commands-dialog/gr-create-commands-dialog_test.html
+++ b/polygerrit-ui/app/elements/change-list/gr-create-commands-dialog/gr-create-commands-dialog_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-create-commands-dialog</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change-list/gr-dashboard-view/gr-dashboard-view_test.html b/polygerrit-ui/app/elements/change-list/gr-dashboard-view/gr-dashboard-view_test.html
index 19742a54fb..5965d06079 100644
--- a/polygerrit-ui/app/elements/change-list/gr-dashboard-view/gr-dashboard-view_test.html
+++ b/polygerrit-ui/app/elements/change-list/gr-dashboard-view/gr-dashboard-view_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-dashboard-view</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change-list/gr-repo-header/gr-repo-header_test.html b/polygerrit-ui/app/elements/change-list/gr-repo-header/gr-repo-header_test.html
index b0a8d1c442..78c1f096bd 100644
--- a/polygerrit-ui/app/elements/change-list/gr-repo-header/gr-repo-header_test.html
+++ b/polygerrit-ui/app/elements/change-list/gr-repo-header/gr-repo-header_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-repo-header</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change-list/gr-user-header/gr-user-header_test.html b/polygerrit-ui/app/elements/change-list/gr-user-header/gr-user-header_test.html
index aa32a948b1..44eb96cd81 100644
--- a/polygerrit-ui/app/elements/change-list/gr-user-header/gr-user-header_test.html
+++ b/polygerrit-ui/app/elements/change-list/gr-user-header/gr-user-header_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-user-header</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change/gr-change-actions/gr-change-actions_test.html b/polygerrit-ui/app/elements/change/gr-change-actions/gr-change-actions_test.html
index 30907dd1ce..acf17ea082 100644
--- a/polygerrit-ui/app/elements/change/gr-change-actions/gr-change-actions_test.html
+++ b/polygerrit-ui/app/elements/change/gr-change-actions/gr-change-actions_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-change-actions</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change/gr-change-metadata/gr-change-metadata-it_test.html b/polygerrit-ui/app/elements/change/gr-change-metadata/gr-change-metadata-it_test.html
index 84ac4e0074..d08f5292e7 100644
--- a/polygerrit-ui/app/elements/change/gr-change-metadata/gr-change-metadata-it_test.html
+++ b/polygerrit-ui/app/elements/change/gr-change-metadata/gr-change-metadata-it_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-change-metadata</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change/gr-change-metadata/gr-change-metadata_test.html b/polygerrit-ui/app/elements/change/gr-change-metadata/gr-change-metadata_test.html
index 5d9745e31b..58cc25b1bd 100644
--- a/polygerrit-ui/app/elements/change/gr-change-metadata/gr-change-metadata_test.html
+++ b/polygerrit-ui/app/elements/change/gr-change-metadata/gr-change-metadata_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-change-metadata</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change/gr-change-requirements/gr-change-requirements_test.html b/polygerrit-ui/app/elements/change/gr-change-requirements/gr-change-requirements_test.html
index 7c8deb3dae..e100f917f2 100644
--- a/polygerrit-ui/app/elements/change/gr-change-requirements/gr-change-requirements_test.html
+++ b/polygerrit-ui/app/elements/change/gr-change-requirements/gr-change-requirements_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-change-requirements</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change/gr-change-view/gr-change-view_test.html b/polygerrit-ui/app/elements/change/gr-change-view/gr-change-view_test.html
index b5c879384b..e7e53a4795 100644
--- a/polygerrit-ui/app/elements/change/gr-change-view/gr-change-view_test.html
+++ b/polygerrit-ui/app/elements/change/gr-change-view/gr-change-view_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-change-view</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change/gr-comment-list/gr-comment-list_test.html b/polygerrit-ui/app/elements/change/gr-comment-list/gr-comment-list_test.html
index e68f1dc239..075b883017 100644
--- a/polygerrit-ui/app/elements/change/gr-comment-list/gr-comment-list_test.html
+++ b/polygerrit-ui/app/elements/change/gr-comment-list/gr-comment-list_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-comment-list</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change/gr-commit-info/gr-commit-info_test.html b/polygerrit-ui/app/elements/change/gr-commit-info/gr-commit-info_test.html
index 0da54d1d83..d9664ecfd1 100644
--- a/polygerrit-ui/app/elements/change/gr-commit-info/gr-commit-info_test.html
+++ b/polygerrit-ui/app/elements/change/gr-commit-info/gr-commit-info_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-commit-info</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change/gr-confirm-abandon-dialog/gr-confirm-abandon-dialog_test.html b/polygerrit-ui/app/elements/change/gr-confirm-abandon-dialog/gr-confirm-abandon-dialog_test.html
index c077f2b64c..8010814466 100644
--- a/polygerrit-ui/app/elements/change/gr-confirm-abandon-dialog/gr-confirm-abandon-dialog_test.html
+++ b/polygerrit-ui/app/elements/change/gr-confirm-abandon-dialog/gr-confirm-abandon-dialog_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-confirm-abandon-dialog</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change/gr-confirm-cherrypick-conflict-dialog/gr-confirm-cherrypick-conflict-dialog_test.html b/polygerrit-ui/app/elements/change/gr-confirm-cherrypick-conflict-dialog/gr-confirm-cherrypick-conflict-dialog_test.html
index 3c7af471ba..e0016f045b 100644
--- a/polygerrit-ui/app/elements/change/gr-confirm-cherrypick-conflict-dialog/gr-confirm-cherrypick-conflict-dialog_test.html
+++ b/polygerrit-ui/app/elements/change/gr-confirm-cherrypick-conflict-dialog/gr-confirm-cherrypick-conflict-dialog_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-confirm-cherrypick-conflict-dialog</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change/gr-confirm-cherrypick-dialog/gr-confirm-cherrypick-dialog_test.html b/polygerrit-ui/app/elements/change/gr-confirm-cherrypick-dialog/gr-confirm-cherrypick-dialog_test.html
index f1ee7e344a..000718bcb1 100644
--- a/polygerrit-ui/app/elements/change/gr-confirm-cherrypick-dialog/gr-confirm-cherrypick-dialog_test.html
+++ b/polygerrit-ui/app/elements/change/gr-confirm-cherrypick-dialog/gr-confirm-cherrypick-dialog_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-confirm-cherrypick-dialog</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change/gr-confirm-move-dialog/gr-confirm-move-dialog_test.html b/polygerrit-ui/app/elements/change/gr-confirm-move-dialog/gr-confirm-move-dialog_test.html
index 25b110ad29..a8392aae2b 100644
--- a/polygerrit-ui/app/elements/change/gr-confirm-move-dialog/gr-confirm-move-dialog_test.html
+++ b/polygerrit-ui/app/elements/change/gr-confirm-move-dialog/gr-confirm-move-dialog_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-confirm-move-dialog</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change/gr-confirm-rebase-dialog/gr-confirm-rebase-dialog_test.html b/polygerrit-ui/app/elements/change/gr-confirm-rebase-dialog/gr-confirm-rebase-dialog_test.html
index ffcb8aef58..080a7e0ea3 100644
--- a/polygerrit-ui/app/elements/change/gr-confirm-rebase-dialog/gr-confirm-rebase-dialog_test.html
+++ b/polygerrit-ui/app/elements/change/gr-confirm-rebase-dialog/gr-confirm-rebase-dialog_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-confirm-rebase-dialog</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change/gr-confirm-revert-dialog/gr-confirm-revert-dialog_test.html b/polygerrit-ui/app/elements/change/gr-confirm-revert-dialog/gr-confirm-revert-dialog_test.html
index fd984ecbb7..3a341c5b61 100644
--- a/polygerrit-ui/app/elements/change/gr-confirm-revert-dialog/gr-confirm-revert-dialog_test.html
+++ b/polygerrit-ui/app/elements/change/gr-confirm-revert-dialog/gr-confirm-revert-dialog_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-confirm-revert-dialog</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change/gr-confirm-revert-submission-dialog/gr-confirm-revert-submission-dialog_test.html b/polygerrit-ui/app/elements/change/gr-confirm-revert-submission-dialog/gr-confirm-revert-submission-dialog_test.html
index cc35d7226d..c51d6356fb 100644
--- a/polygerrit-ui/app/elements/change/gr-confirm-revert-submission-dialog/gr-confirm-revert-submission-dialog_test.html
+++ b/polygerrit-ui/app/elements/change/gr-confirm-revert-submission-dialog/gr-confirm-revert-submission-dialog_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-confirm-revert-submission-dialog</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change/gr-confirm-submit-dialog/gr-confirm-submit-dialog_test.html b/polygerrit-ui/app/elements/change/gr-confirm-submit-dialog/gr-confirm-submit-dialog_test.html
index 3a3983342b..30699d53f7 100644
--- a/polygerrit-ui/app/elements/change/gr-confirm-submit-dialog/gr-confirm-submit-dialog_test.html
+++ b/polygerrit-ui/app/elements/change/gr-confirm-submit-dialog/gr-confirm-submit-dialog_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-confirm-submit-dialog</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change/gr-download-dialog/gr-download-dialog_test.html b/polygerrit-ui/app/elements/change/gr-download-dialog/gr-download-dialog_test.html
index c2f4963801..46c57fe932 100644
--- a/polygerrit-ui/app/elements/change/gr-download-dialog/gr-download-dialog_test.html
+++ b/polygerrit-ui/app/elements/change/gr-download-dialog/gr-download-dialog_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-download-dialog</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change/gr-file-list-header/gr-file-list-header_test.html b/polygerrit-ui/app/elements/change/gr-file-list-header/gr-file-list-header_test.html
index ceac41a4d8..19362d5ab2 100644
--- a/polygerrit-ui/app/elements/change/gr-file-list-header/gr-file-list-header_test.html
+++ b/polygerrit-ui/app/elements/change/gr-file-list-header/gr-file-list-header_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-file-list-header</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change/gr-file-list/gr-file-list_test.html b/polygerrit-ui/app/elements/change/gr-file-list/gr-file-list_test.html
index e0c70a40b1..32945e45f6 100644
--- a/polygerrit-ui/app/elements/change/gr-file-list/gr-file-list_test.html
+++ b/polygerrit-ui/app/elements/change/gr-file-list/gr-file-list_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-file-list</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change/gr-included-in-dialog/gr-included-in-dialog_test.html b/polygerrit-ui/app/elements/change/gr-included-in-dialog/gr-included-in-dialog_test.html
index c87c54fc35..fe6119e528 100644
--- a/polygerrit-ui/app/elements/change/gr-included-in-dialog/gr-included-in-dialog_test.html
+++ b/polygerrit-ui/app/elements/change/gr-included-in-dialog/gr-included-in-dialog_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-included-in-dialog</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change/gr-label-score-row/gr-label-score-row_test.html b/polygerrit-ui/app/elements/change/gr-label-score-row/gr-label-score-row_test.html
index 374472f738..6e0a90d639 100644
--- a/polygerrit-ui/app/elements/change/gr-label-score-row/gr-label-score-row_test.html
+++ b/polygerrit-ui/app/elements/change/gr-label-score-row/gr-label-score-row_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-label-score-row</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change/gr-label-scores/gr-label-scores_test.html b/polygerrit-ui/app/elements/change/gr-label-scores/gr-label-scores_test.html
index a01454c0f9..7ee86d6976 100644
--- a/polygerrit-ui/app/elements/change/gr-label-scores/gr-label-scores_test.html
+++ b/polygerrit-ui/app/elements/change/gr-label-scores/gr-label-scores_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-label-scores</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change/gr-message/gr-message_test.html b/polygerrit-ui/app/elements/change/gr-message/gr-message_test.html
index 2e195c1147..5e2feb4bd9 100644
--- a/polygerrit-ui/app/elements/change/gr-message/gr-message_test.html
+++ b/polygerrit-ui/app/elements/change/gr-message/gr-message_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-message</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change/gr-messages-list/gr-messages-list-experimental_test.html b/polygerrit-ui/app/elements/change/gr-messages-list/gr-messages-list-experimental_test.html
index f50a9baa84..9c22ab522b 100644
--- a/polygerrit-ui/app/elements/change/gr-messages-list/gr-messages-list-experimental_test.html
+++ b/polygerrit-ui/app/elements/change/gr-messages-list/gr-messages-list-experimental_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-messages-list-experimental</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change/gr-messages-list/gr-messages-list_test.html b/polygerrit-ui/app/elements/change/gr-messages-list/gr-messages-list_test.html
index ccbe67c621..80896aa6b7 100644
--- a/polygerrit-ui/app/elements/change/gr-messages-list/gr-messages-list_test.html
+++ b/polygerrit-ui/app/elements/change/gr-messages-list/gr-messages-list_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-messages-list</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change/gr-related-changes-list/gr-related-changes-list_test.html b/polygerrit-ui/app/elements/change/gr-related-changes-list/gr-related-changes-list_test.html
index 2425d8b430..763a6dad2a 100644
--- a/polygerrit-ui/app/elements/change/gr-related-changes-list/gr-related-changes-list_test.html
+++ b/polygerrit-ui/app/elements/change/gr-related-changes-list/gr-related-changes-list_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-related-changes-list</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change/gr-reply-dialog/gr-reply-dialog-it_test.html b/polygerrit-ui/app/elements/change/gr-reply-dialog/gr-reply-dialog-it_test.html
index fba487b927..d3232e9bec 100644
--- a/polygerrit-ui/app/elements/change/gr-reply-dialog/gr-reply-dialog-it_test.html
+++ b/polygerrit-ui/app/elements/change/gr-reply-dialog/gr-reply-dialog-it_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-reply-dialog</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change/gr-reply-dialog/gr-reply-dialog_test.html b/polygerrit-ui/app/elements/change/gr-reply-dialog/gr-reply-dialog_test.html
index 0df44b9b06..91b4db2c1c 100644
--- a/polygerrit-ui/app/elements/change/gr-reply-dialog/gr-reply-dialog_test.html
+++ b/polygerrit-ui/app/elements/change/gr-reply-dialog/gr-reply-dialog_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-reply-dialog</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change/gr-reviewer-list/gr-reviewer-list_test.html b/polygerrit-ui/app/elements/change/gr-reviewer-list/gr-reviewer-list_test.html
index 9e51d1688f..6949afc4f5 100644
--- a/polygerrit-ui/app/elements/change/gr-reviewer-list/gr-reviewer-list_test.html
+++ b/polygerrit-ui/app/elements/change/gr-reviewer-list/gr-reviewer-list_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-reviewer-list</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change/gr-thread-list/gr-thread-list_test.html b/polygerrit-ui/app/elements/change/gr-thread-list/gr-thread-list_test.html
index 9ddc349183..4b00d5a7c2 100644
--- a/polygerrit-ui/app/elements/change/gr-thread-list/gr-thread-list_test.html
+++ b/polygerrit-ui/app/elements/change/gr-thread-list/gr-thread-list_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-thread-list</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/change/gr-upload-help-dialog/gr-upload-help-dialog_test.html b/polygerrit-ui/app/elements/change/gr-upload-help-dialog/gr-upload-help-dialog_test.html
index bea8113155..164c48305e 100644
--- a/polygerrit-ui/app/elements/change/gr-upload-help-dialog/gr-upload-help-dialog_test.html
+++ b/polygerrit-ui/app/elements/change/gr-upload-help-dialog/gr-upload-help-dialog_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-upload-help-dialog</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/core/gr-account-dropdown/gr-account-dropdown_test.html b/polygerrit-ui/app/elements/core/gr-account-dropdown/gr-account-dropdown_test.html
index d9d932adb0..6c8ed689b7 100644
--- a/polygerrit-ui/app/elements/core/gr-account-dropdown/gr-account-dropdown_test.html
+++ b/polygerrit-ui/app/elements/core/gr-account-dropdown/gr-account-dropdown_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-account-dropdown</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/core/gr-error-dialog/gr-error-dialog_test.html b/polygerrit-ui/app/elements/core/gr-error-dialog/gr-error-dialog_test.html
index 2e6cff075c..bd4991f523 100644
--- a/polygerrit-ui/app/elements/core/gr-error-dialog/gr-error-dialog_test.html
+++ b/polygerrit-ui/app/elements/core/gr-error-dialog/gr-error-dialog_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-error-dialog</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/core/gr-error-manager/gr-error-manager_test.html b/polygerrit-ui/app/elements/core/gr-error-manager/gr-error-manager_test.html
index 93f0b4fdcb..8272c6e0b7 100644
--- a/polygerrit-ui/app/elements/core/gr-error-manager/gr-error-manager_test.html
+++ b/polygerrit-ui/app/elements/core/gr-error-manager/gr-error-manager_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-error-manager</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/core/gr-key-binding-display/gr-key-binding-display_test.html b/polygerrit-ui/app/elements/core/gr-key-binding-display/gr-key-binding-display_test.html
index 1bf0b14d4f..8ae0f69d53 100644
--- a/polygerrit-ui/app/elements/core/gr-key-binding-display/gr-key-binding-display_test.html
+++ b/polygerrit-ui/app/elements/core/gr-key-binding-display/gr-key-binding-display_test.html
@@ -16,6 +16,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 -->
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-key-binding-display</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/core/gr-keyboard-shortcuts-dialog/gr-keyboard-shortcuts-dialog_test.html b/polygerrit-ui/app/elements/core/gr-keyboard-shortcuts-dialog/gr-keyboard-shortcuts-dialog_test.html
index e457bfb7e3..1b5cd0f1be 100644
--- a/polygerrit-ui/app/elements/core/gr-keyboard-shortcuts-dialog/gr-keyboard-shortcuts-dialog_test.html
+++ b/polygerrit-ui/app/elements/core/gr-keyboard-shortcuts-dialog/gr-keyboard-shortcuts-dialog_test.html
@@ -16,6 +16,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 -->
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-key-binding-display</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/core/gr-main-header/gr-main-header_test.html b/polygerrit-ui/app/elements/core/gr-main-header/gr-main-header_test.html
index c641575d1f..336d873e9e 100644
--- a/polygerrit-ui/app/elements/core/gr-main-header/gr-main-header_test.html
+++ b/polygerrit-ui/app/elements/core/gr-main-header/gr-main-header_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-main-header</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/core/gr-navigation/gr-navigation_test.html b/polygerrit-ui/app/elements/core/gr-navigation/gr-navigation_test.html
index 150c23b373..8fc4c7506f 100644
--- a/polygerrit-ui/app/elements/core/gr-navigation/gr-navigation_test.html
+++ b/polygerrit-ui/app/elements/core/gr-navigation/gr-navigation_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-navigation</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/core/gr-reporting/gr-reporting_test.html b/polygerrit-ui/app/elements/core/gr-reporting/gr-reporting_test.html
index d04d519268..e140d6c376 100644
--- a/polygerrit-ui/app/elements/core/gr-reporting/gr-reporting_test.html
+++ b/polygerrit-ui/app/elements/core/gr-reporting/gr-reporting_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-reporting</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/core/gr-router/gr-router_test.html b/polygerrit-ui/app/elements/core/gr-router/gr-router_test.html
index 9e3a7a81e5..b5bfd4ebc4 100644
--- a/polygerrit-ui/app/elements/core/gr-router/gr-router_test.html
+++ b/polygerrit-ui/app/elements/core/gr-router/gr-router_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-router</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/core/gr-search-bar/gr-search-bar_test.html b/polygerrit-ui/app/elements/core/gr-search-bar/gr-search-bar_test.html
index a142e561f7..3b37e092d0 100644
--- a/polygerrit-ui/app/elements/core/gr-search-bar/gr-search-bar_test.html
+++ b/polygerrit-ui/app/elements/core/gr-search-bar/gr-search-bar_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-search-bar</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/core/gr-smart-search/gr-smart-search_test.html b/polygerrit-ui/app/elements/core/gr-smart-search/gr-smart-search_test.html
index 7cc75bbae6..87dfaf4e89 100644
--- a/polygerrit-ui/app/elements/core/gr-smart-search/gr-smart-search_test.html
+++ b/polygerrit-ui/app/elements/core/gr-smart-search/gr-smart-search_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-smart-search</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/custom-dark-theme_test.html b/polygerrit-ui/app/elements/custom-dark-theme_test.html
index c04e4d06ec..6ac9c20896 100644
--- a/polygerrit-ui/app/elements/custom-dark-theme_test.html
+++ b/polygerrit-ui/app/elements/custom-dark-theme_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-app-it_test</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/custom-light-theme_test.html b/polygerrit-ui/app/elements/custom-light-theme_test.html
index fbd382594b..f8a749cf70 100644
--- a/polygerrit-ui/app/elements/custom-light-theme_test.html
+++ b/polygerrit-ui/app/elements/custom-light-theme_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-app-it_test</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/diff/gr-comment-api/gr-comment-api_test.html b/polygerrit-ui/app/elements/diff/gr-comment-api/gr-comment-api_test.html
index 0f6ed3494b..29262e3c87 100644
--- a/polygerrit-ui/app/elements/diff/gr-comment-api/gr-comment-api_test.html
+++ b/polygerrit-ui/app/elements/diff/gr-comment-api/gr-comment-api_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-comment-api</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/diff/gr-coverage-layer/gr-coverage-layer_test.html b/polygerrit-ui/app/elements/diff/gr-coverage-layer/gr-coverage-layer_test.html
index cec75fd7d0..b80c56f3d4 100644
--- a/polygerrit-ui/app/elements/diff/gr-coverage-layer/gr-coverage-layer_test.html
+++ b/polygerrit-ui/app/elements/diff/gr-coverage-layer/gr-coverage-layer_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-coverage-layer</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/diff/gr-diff-builder/gr-diff-builder-element_test.html b/polygerrit-ui/app/elements/diff/gr-diff-builder/gr-diff-builder-element_test.html
index 0edf9b0da8..e5eec8d068 100644
--- a/polygerrit-ui/app/elements/diff/gr-diff-builder/gr-diff-builder-element_test.html
+++ b/polygerrit-ui/app/elements/diff/gr-diff-builder/gr-diff-builder-element_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-diff-builder</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/diff/gr-diff-builder/gr-diff-builder-unified_test.html b/polygerrit-ui/app/elements/diff/gr-diff-builder/gr-diff-builder-unified_test.html
index 8528be3e7f..2d26667acb 100644
--- a/polygerrit-ui/app/elements/diff/gr-diff-builder/gr-diff-builder-unified_test.html
+++ b/polygerrit-ui/app/elements/diff/gr-diff-builder/gr-diff-builder-unified_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>GrDiffBuilderUnified</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/diff/gr-diff-cursor/gr-diff-cursor_test.html b/polygerrit-ui/app/elements/diff/gr-diff-cursor/gr-diff-cursor_test.html
index 4577696623..77e51798e6 100644
--- a/polygerrit-ui/app/elements/diff/gr-diff-cursor/gr-diff-cursor_test.html
+++ b/polygerrit-ui/app/elements/diff/gr-diff-cursor/gr-diff-cursor_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-diff-cursor</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/diff/gr-diff-highlight/gr-annotation_test.html b/polygerrit-ui/app/elements/diff/gr-diff-highlight/gr-annotation_test.html
index a519cab495..2bda950ef3 100644
--- a/polygerrit-ui/app/elements/diff/gr-diff-highlight/gr-annotation_test.html
+++ b/polygerrit-ui/app/elements/diff/gr-diff-highlight/gr-annotation_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-annotation</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/diff/gr-diff-highlight/gr-diff-highlight_test.html b/polygerrit-ui/app/elements/diff/gr-diff-highlight/gr-diff-highlight_test.html
index fe8d3828eb..86f1505520 100644
--- a/polygerrit-ui/app/elements/diff/gr-diff-highlight/gr-diff-highlight_test.html
+++ b/polygerrit-ui/app/elements/diff/gr-diff-highlight/gr-diff-highlight_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-diff-highlight</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/diff/gr-diff-host/gr-diff-host_test.html b/polygerrit-ui/app/elements/diff/gr-diff-host/gr-diff-host_test.html
index 86a8792505..0cb2b5e4dd 100644
--- a/polygerrit-ui/app/elements/diff/gr-diff-host/gr-diff-host_test.html
+++ b/polygerrit-ui/app/elements/diff/gr-diff-host/gr-diff-host_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-diff</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/diff/gr-diff-mode-selector/gr-diff-mode-selector_test.html b/polygerrit-ui/app/elements/diff/gr-diff-mode-selector/gr-diff-mode-selector_test.html
index be276ec071..309f4ac4fe 100644
--- a/polygerrit-ui/app/elements/diff/gr-diff-mode-selector/gr-diff-mode-selector_test.html
+++ b/polygerrit-ui/app/elements/diff/gr-diff-mode-selector/gr-diff-mode-selector_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-diff-mode-selector</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/diff/gr-diff-processor/gr-diff-processor_test.html b/polygerrit-ui/app/elements/diff/gr-diff-processor/gr-diff-processor_test.html
index 5577b8c111..50bfe107d8 100644
--- a/polygerrit-ui/app/elements/diff/gr-diff-processor/gr-diff-processor_test.html
+++ b/polygerrit-ui/app/elements/diff/gr-diff-processor/gr-diff-processor_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-diff-processor test</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/diff/gr-diff-selection/gr-diff-selection_test.html b/polygerrit-ui/app/elements/diff/gr-diff-selection/gr-diff-selection_test.html
index e9405cb949..1221b58c12 100644
--- a/polygerrit-ui/app/elements/diff/gr-diff-selection/gr-diff-selection_test.html
+++ b/polygerrit-ui/app/elements/diff/gr-diff-selection/gr-diff-selection_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-diff-selection</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/diff/gr-diff-view/gr-diff-view_test.html b/polygerrit-ui/app/elements/diff/gr-diff-view/gr-diff-view_test.html
index 26b900deb0..7d9f44b8b3 100644
--- a/polygerrit-ui/app/elements/diff/gr-diff-view/gr-diff-view_test.html
+++ b/polygerrit-ui/app/elements/diff/gr-diff-view/gr-diff-view_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-diff-view</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/diff/gr-diff/gr-diff-group_test.html b/polygerrit-ui/app/elements/diff/gr-diff/gr-diff-group_test.html
index 12d732469d..d50a7f4656 100644
--- a/polygerrit-ui/app/elements/diff/gr-diff/gr-diff-group_test.html
+++ b/polygerrit-ui/app/elements/diff/gr-diff/gr-diff-group_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-diff-group</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/diff/gr-diff/gr-diff_test.html b/polygerrit-ui/app/elements/diff/gr-diff/gr-diff_test.html
index 35abd04bf0..aad9f7fbbc 100644
--- a/polygerrit-ui/app/elements/diff/gr-diff/gr-diff_test.html
+++ b/polygerrit-ui/app/elements/diff/gr-diff/gr-diff_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-diff</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/diff/gr-patch-range-select/gr-patch-range-select_test.html b/polygerrit-ui/app/elements/diff/gr-patch-range-select/gr-patch-range-select_test.html
index af2458acc2..63e6fc620a 100644
--- a/polygerrit-ui/app/elements/diff/gr-patch-range-select/gr-patch-range-select_test.html
+++ b/polygerrit-ui/app/elements/diff/gr-patch-range-select/gr-patch-range-select_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-patch-range-select</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/diff/gr-ranged-comment-layer/gr-ranged-comment-layer_test.html b/polygerrit-ui/app/elements/diff/gr-ranged-comment-layer/gr-ranged-comment-layer_test.html
index eec61251c3..ff1f4a7ac7 100644
--- a/polygerrit-ui/app/elements/diff/gr-ranged-comment-layer/gr-ranged-comment-layer_test.html
+++ b/polygerrit-ui/app/elements/diff/gr-ranged-comment-layer/gr-ranged-comment-layer_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-ranged-comment-layer</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/diff/gr-selection-action-box/gr-selection-action-box_test.html b/polygerrit-ui/app/elements/diff/gr-selection-action-box/gr-selection-action-box_test.html
index d934877349..ff6fba7467 100644
--- a/polygerrit-ui/app/elements/diff/gr-selection-action-box/gr-selection-action-box_test.html
+++ b/polygerrit-ui/app/elements/diff/gr-selection-action-box/gr-selection-action-box_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-selection-action-box</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/diff/gr-syntax-layer/gr-syntax-layer_test.html b/polygerrit-ui/app/elements/diff/gr-syntax-layer/gr-syntax-layer_test.html
index 07f95f4dff..ccdbe8b342 100644
--- a/polygerrit-ui/app/elements/diff/gr-syntax-layer/gr-syntax-layer_test.html
+++ b/polygerrit-ui/app/elements/diff/gr-syntax-layer/gr-syntax-layer_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-syntax-layer</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/documentation/gr-documentation-search/gr-documentation-search_test.html b/polygerrit-ui/app/elements/documentation/gr-documentation-search/gr-documentation-search_test.html
index 36aca8664b..d0581efa37 100644
--- a/polygerrit-ui/app/elements/documentation/gr-documentation-search/gr-documentation-search_test.html
+++ b/polygerrit-ui/app/elements/documentation/gr-documentation-search/gr-documentation-search_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-documentation-search</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/edit/gr-default-editor/gr-default-editor_test.html b/polygerrit-ui/app/elements/edit/gr-default-editor/gr-default-editor_test.html
index 30cfe39978..229c6c3107 100644
--- a/polygerrit-ui/app/elements/edit/gr-default-editor/gr-default-editor_test.html
+++ b/polygerrit-ui/app/elements/edit/gr-default-editor/gr-default-editor_test.html
@@ -16,6 +16,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-default-editor</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/edit/gr-edit-controls/gr-edit-controls_test.html b/polygerrit-ui/app/elements/edit/gr-edit-controls/gr-edit-controls_test.html
index 8d6e68922a..1267525d20 100644
--- a/polygerrit-ui/app/elements/edit/gr-edit-controls/gr-edit-controls_test.html
+++ b/polygerrit-ui/app/elements/edit/gr-edit-controls/gr-edit-controls_test.html
@@ -16,6 +16,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-edit-controls</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/edit/gr-edit-file-controls/gr-edit-file-controls_test.html b/polygerrit-ui/app/elements/edit/gr-edit-file-controls/gr-edit-file-controls_test.html
index 94e18ff736..e11a2bd1f3 100644
--- a/polygerrit-ui/app/elements/edit/gr-edit-file-controls/gr-edit-file-controls_test.html
+++ b/polygerrit-ui/app/elements/edit/gr-edit-file-controls/gr-edit-file-controls_test.html
@@ -16,6 +16,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-edit-file-controls</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/edit/gr-editor-view/gr-editor-view_test.html b/polygerrit-ui/app/elements/edit/gr-editor-view/gr-editor-view_test.html
index 79fbfd0081..e385854f51 100644
--- a/polygerrit-ui/app/elements/edit/gr-editor-view/gr-editor-view_test.html
+++ b/polygerrit-ui/app/elements/edit/gr-editor-view/gr-editor-view_test.html
@@ -16,6 +16,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-editor-view</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/gr-app_test.html b/polygerrit-ui/app/elements/gr-app_test.html
index c65edb02e8..6a13789f1b 100644
--- a/polygerrit-ui/app/elements/gr-app_test.html
+++ b/polygerrit-ui/app/elements/gr-app_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-app</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/settings/gr-account-info/gr-account-info_test.html b/polygerrit-ui/app/elements/settings/gr-account-info/gr-account-info_test.html
index 14bc5debae..53641d98d1 100644
--- a/polygerrit-ui/app/elements/settings/gr-account-info/gr-account-info_test.html
+++ b/polygerrit-ui/app/elements/settings/gr-account-info/gr-account-info_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-account-info</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/settings/gr-agreements-list/gr-agreements-list_test.html b/polygerrit-ui/app/elements/settings/gr-agreements-list/gr-agreements-list_test.html
index 0a008a4d5d..3a2b86d565 100644
--- a/polygerrit-ui/app/elements/settings/gr-agreements-list/gr-agreements-list_test.html
+++ b/polygerrit-ui/app/elements/settings/gr-agreements-list/gr-agreements-list_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-settings-view</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/settings/gr-change-table-editor/gr-change-table-editor_test.html b/polygerrit-ui/app/elements/settings/gr-change-table-editor/gr-change-table-editor_test.html
index 919be86438..79d1390ed3 100644
--- a/polygerrit-ui/app/elements/settings/gr-change-table-editor/gr-change-table-editor_test.html
+++ b/polygerrit-ui/app/elements/settings/gr-change-table-editor/gr-change-table-editor_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-settings-view</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/settings/gr-cla-view/gr-cla-view_test.html b/polygerrit-ui/app/elements/settings/gr-cla-view/gr-cla-view_test.html
index a1874dbec3..bc3c10c9d5 100644
--- a/polygerrit-ui/app/elements/settings/gr-cla-view/gr-cla-view_test.html
+++ b/polygerrit-ui/app/elements/settings/gr-cla-view/gr-cla-view_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-cla-view</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/settings/gr-edit-preferences/gr-edit-preferences_test.html b/polygerrit-ui/app/elements/settings/gr-edit-preferences/gr-edit-preferences_test.html
index 47e295c300..3cc7bfe636 100644
--- a/polygerrit-ui/app/elements/settings/gr-edit-preferences/gr-edit-preferences_test.html
+++ b/polygerrit-ui/app/elements/settings/gr-edit-preferences/gr-edit-preferences_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-edit-preferences</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/settings/gr-email-editor/gr-email-editor_test.html b/polygerrit-ui/app/elements/settings/gr-email-editor/gr-email-editor_test.html
index dbdd2d63c3..ad2553d904 100644
--- a/polygerrit-ui/app/elements/settings/gr-email-editor/gr-email-editor_test.html
+++ b/polygerrit-ui/app/elements/settings/gr-email-editor/gr-email-editor_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-email-editor</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/settings/gr-gpg-editor/gr-gpg-editor_test.html b/polygerrit-ui/app/elements/settings/gr-gpg-editor/gr-gpg-editor_test.html
index c9daa89e2f..4a0af5bdd2 100644
--- a/polygerrit-ui/app/elements/settings/gr-gpg-editor/gr-gpg-editor_test.html
+++ b/polygerrit-ui/app/elements/settings/gr-gpg-editor/gr-gpg-editor_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-gpg-editor</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/settings/gr-group-list/gr-group-list_test.html b/polygerrit-ui/app/elements/settings/gr-group-list/gr-group-list_test.html
index 0d24948a79..0525003b60 100644
--- a/polygerrit-ui/app/elements/settings/gr-group-list/gr-group-list_test.html
+++ b/polygerrit-ui/app/elements/settings/gr-group-list/gr-group-list_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-settings-view</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/settings/gr-http-password/gr-http-password_test.html b/polygerrit-ui/app/elements/settings/gr-http-password/gr-http-password_test.html
index b31fa50911..26fa84de10 100644
--- a/polygerrit-ui/app/elements/settings/gr-http-password/gr-http-password_test.html
+++ b/polygerrit-ui/app/elements/settings/gr-http-password/gr-http-password_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-settings-view</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/settings/gr-identities/gr-identities_test.html b/polygerrit-ui/app/elements/settings/gr-identities/gr-identities_test.html
index 576f072311..09658269e9 100644
--- a/polygerrit-ui/app/elements/settings/gr-identities/gr-identities_test.html
+++ b/polygerrit-ui/app/elements/settings/gr-identities/gr-identities_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-identities</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/settings/gr-menu-editor/gr-menu-editor_test.html b/polygerrit-ui/app/elements/settings/gr-menu-editor/gr-menu-editor_test.html
index b3e9a15181..9c8db6d869 100644
--- a/polygerrit-ui/app/elements/settings/gr-menu-editor/gr-menu-editor_test.html
+++ b/polygerrit-ui/app/elements/settings/gr-menu-editor/gr-menu-editor_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-settings-view</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/settings/gr-registration-dialog/gr-registration-dialog_test.html b/polygerrit-ui/app/elements/settings/gr-registration-dialog/gr-registration-dialog_test.html
index 501dae561b..a3f8548f19 100644
--- a/polygerrit-ui/app/elements/settings/gr-registration-dialog/gr-registration-dialog_test.html
+++ b/polygerrit-ui/app/elements/settings/gr-registration-dialog/gr-registration-dialog_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-registration-dialog</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/settings/gr-settings-view/gr-settings-view_test.html b/polygerrit-ui/app/elements/settings/gr-settings-view/gr-settings-view_test.html
index a99bfca88b..e430ecbd0a 100644
--- a/polygerrit-ui/app/elements/settings/gr-settings-view/gr-settings-view_test.html
+++ b/polygerrit-ui/app/elements/settings/gr-settings-view/gr-settings-view_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-settings-view</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/settings/gr-ssh-editor/gr-ssh-editor_test.html b/polygerrit-ui/app/elements/settings/gr-ssh-editor/gr-ssh-editor_test.html
index ed1a7ca10e..56625ae67b 100644
--- a/polygerrit-ui/app/elements/settings/gr-ssh-editor/gr-ssh-editor_test.html
+++ b/polygerrit-ui/app/elements/settings/gr-ssh-editor/gr-ssh-editor_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-ssh-editor</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/settings/gr-watched-projects-editor/gr-watched-projects-editor_test.html b/polygerrit-ui/app/elements/settings/gr-watched-projects-editor/gr-watched-projects-editor_test.html
index 2bf0ca73bd..2a08e4fb57 100644
--- a/polygerrit-ui/app/elements/settings/gr-watched-projects-editor/gr-watched-projects-editor_test.html
+++ b/polygerrit-ui/app/elements/settings/gr-watched-projects-editor/gr-watched-projects-editor_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-settings-view</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-account-entry/gr-account-entry_test.html b/polygerrit-ui/app/elements/shared/gr-account-entry/gr-account-entry_test.html
index f478e9ec7f..5899ad4ee3 100644
--- a/polygerrit-ui/app/elements/shared/gr-account-entry/gr-account-entry_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-account-entry/gr-account-entry_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-account-entry</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-account-label/gr-account-label_test.html b/polygerrit-ui/app/elements/shared/gr-account-label/gr-account-label_test.html
index 8951bf0dae..4cc66c4a5e 100644
--- a/polygerrit-ui/app/elements/shared/gr-account-label/gr-account-label_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-account-label/gr-account-label_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-account-label</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-account-link/gr-account-link_test.html b/polygerrit-ui/app/elements/shared/gr-account-link/gr-account-link_test.html
index aa1c575fea..f3bff6e46e 100644
--- a/polygerrit-ui/app/elements/shared/gr-account-link/gr-account-link_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-account-link/gr-account-link_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-account-link</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-account-list/gr-account-list_test.html b/polygerrit-ui/app/elements/shared/gr-account-list/gr-account-list_test.html
index 2023dabbf4..b3b32606ed 100644
--- a/polygerrit-ui/app/elements/shared/gr-account-list/gr-account-list_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-account-list/gr-account-list_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-account-list</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-alert/gr-alert_test.html b/polygerrit-ui/app/elements/shared/gr-alert/gr-alert_test.html
index 582dcf9581..557ec283de 100644
--- a/polygerrit-ui/app/elements/shared/gr-alert/gr-alert_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-alert/gr-alert_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-alert</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-autocomplete-dropdown/gr-autocomplete-dropdown_test.html b/polygerrit-ui/app/elements/shared/gr-autocomplete-dropdown/gr-autocomplete-dropdown_test.html
index 4f3d806698..d83615575d 100644
--- a/polygerrit-ui/app/elements/shared/gr-autocomplete-dropdown/gr-autocomplete-dropdown_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-autocomplete-dropdown/gr-autocomplete-dropdown_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-autocomplete-dropdown</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-autocomplete/gr-autocomplete_test.html b/polygerrit-ui/app/elements/shared/gr-autocomplete/gr-autocomplete_test.html
index 68de4fc59e..6dd5a975ee 100644
--- a/polygerrit-ui/app/elements/shared/gr-autocomplete/gr-autocomplete_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-autocomplete/gr-autocomplete_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-reviewer-list</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-avatar/gr-avatar_test.html b/polygerrit-ui/app/elements/shared/gr-avatar/gr-avatar_test.html
index 294d86d59b..dddc3d880e 100644
--- a/polygerrit-ui/app/elements/shared/gr-avatar/gr-avatar_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-avatar/gr-avatar_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-avatar</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-button/gr-button_test.html b/polygerrit-ui/app/elements/shared/gr-button/gr-button_test.html
index 9454d15f50..ae627d160a 100644
--- a/polygerrit-ui/app/elements/shared/gr-button/gr-button_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-button/gr-button_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-button</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-change-star/gr-change-star_test.html b/polygerrit-ui/app/elements/shared/gr-change-star/gr-change-star_test.html
index 66bbd36b1f..1ea9071042 100644
--- a/polygerrit-ui/app/elements/shared/gr-change-star/gr-change-star_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-change-star/gr-change-star_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-change-star</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-change-status/gr-change-status_test.html b/polygerrit-ui/app/elements/shared/gr-change-status/gr-change-status_test.html
index 48c1495d78..806203b6d5 100644
--- a/polygerrit-ui/app/elements/shared/gr-change-status/gr-change-status_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-change-status/gr-change-status_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-change-status</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-comment-thread/gr-comment-thread_test.html b/polygerrit-ui/app/elements/shared/gr-comment-thread/gr-comment-thread_test.html
index d7c493c302..a91a78afeb 100644
--- a/polygerrit-ui/app/elements/shared/gr-comment-thread/gr-comment-thread_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-comment-thread/gr-comment-thread_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-comment-thread</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-comment/gr-comment_test.html b/polygerrit-ui/app/elements/shared/gr-comment/gr-comment_test.html
index dc4c2a6ecb..e853a6458d 100644
--- a/polygerrit-ui/app/elements/shared/gr-comment/gr-comment_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-comment/gr-comment_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-comment</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-copy-clipboard/gr-copy-clipboard_test.html b/polygerrit-ui/app/elements/shared/gr-copy-clipboard/gr-copy-clipboard_test.html
index 84cb16669f..398f7f06d2 100644
--- a/polygerrit-ui/app/elements/shared/gr-copy-clipboard/gr-copy-clipboard_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-copy-clipboard/gr-copy-clipboard_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-copy-clipboard</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-count-string-formatter/gr-count-string-formatter_test.html b/polygerrit-ui/app/elements/shared/gr-count-string-formatter/gr-count-string-formatter_test.html
index 7f08603f26..63435d2e46 100644
--- a/polygerrit-ui/app/elements/shared/gr-count-string-formatter/gr-count-string-formatter_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-count-string-formatter/gr-count-string-formatter_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-count-string-formatter</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-cursor-manager/gr-cursor-manager_test.html b/polygerrit-ui/app/elements/shared/gr-cursor-manager/gr-cursor-manager_test.html
index 1f5b4c0298..98a7d24928 100644
--- a/polygerrit-ui/app/elements/shared/gr-cursor-manager/gr-cursor-manager_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-cursor-manager/gr-cursor-manager_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-cursor-manager</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-date-formatter/gr-date-formatter_test.html b/polygerrit-ui/app/elements/shared/gr-date-formatter/gr-date-formatter_test.html
index 92e4bc8249..7169ef27c3 100644
--- a/polygerrit-ui/app/elements/shared/gr-date-formatter/gr-date-formatter_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-date-formatter/gr-date-formatter_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-date-formatter</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-dialog/gr-dialog_test.html b/polygerrit-ui/app/elements/shared/gr-dialog/gr-dialog_test.html
index 919ed8883e..1060e82349 100644
--- a/polygerrit-ui/app/elements/shared/gr-dialog/gr-dialog_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-dialog/gr-dialog_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-dialog</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-diff-preferences/gr-diff-preferences_test.html b/polygerrit-ui/app/elements/shared/gr-diff-preferences/gr-diff-preferences_test.html
index 5607a3dd46..2750d67669 100644
--- a/polygerrit-ui/app/elements/shared/gr-diff-preferences/gr-diff-preferences_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-diff-preferences/gr-diff-preferences_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-diff-preferences</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-download-commands/gr-download-commands_test.html b/polygerrit-ui/app/elements/shared/gr-download-commands/gr-download-commands_test.html
index 2543e28dab..237fbe05a0 100644
--- a/polygerrit-ui/app/elements/shared/gr-download-commands/gr-download-commands_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-download-commands/gr-download-commands_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-download-commands</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-dropdown-list/gr-dropdown-list_test.html b/polygerrit-ui/app/elements/shared/gr-dropdown-list/gr-dropdown-list_test.html
index 7d39f9ed91..b64d5f760a 100644
--- a/polygerrit-ui/app/elements/shared/gr-dropdown-list/gr-dropdown-list_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-dropdown-list/gr-dropdown-list_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-dropdown-list</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-dropdown/gr-dropdown_test.html b/polygerrit-ui/app/elements/shared/gr-dropdown/gr-dropdown_test.html
index a05634bcef..d17cc1ad94 100644
--- a/polygerrit-ui/app/elements/shared/gr-dropdown/gr-dropdown_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-dropdown/gr-dropdown_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-dropdown</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-editable-content/gr-editable-content_test.html b/polygerrit-ui/app/elements/shared/gr-editable-content/gr-editable-content_test.html
index 8b9f39d505..c50920e5e8 100644
--- a/polygerrit-ui/app/elements/shared/gr-editable-content/gr-editable-content_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-editable-content/gr-editable-content_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-editable-content</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-editable-label/gr-editable-label_test.html b/polygerrit-ui/app/elements/shared/gr-editable-label/gr-editable-label_test.html
index ef392dff87..5673194088 100644
--- a/polygerrit-ui/app/elements/shared/gr-editable-label/gr-editable-label_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-editable-label/gr-editable-label_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-editable-label</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-event-interface/gr-event-interface_test.html b/polygerrit-ui/app/elements/shared/gr-event-interface/gr-event-interface_test.html
index d2245b1610..74936adea4 100644
--- a/polygerrit-ui/app/elements/shared/gr-event-interface/gr-event-interface_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-event-interface/gr-event-interface_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-api-interface</title>
 
 <script src="../../../node_modules/@webcomponents/webcomponentsjs/webcomponents-bundle.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-fixed-panel/gr-fixed-panel_test.html b/polygerrit-ui/app/elements/shared/gr-fixed-panel/gr-fixed-panel_test.html
index cc2fb7076e..ef31382e8d 100644
--- a/polygerrit-ui/app/elements/shared/gr-fixed-panel/gr-fixed-panel_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-fixed-panel/gr-fixed-panel_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-fixed-panel</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-formatted-text/gr-formatted-text_test.html b/polygerrit-ui/app/elements/shared/gr-formatted-text/gr-formatted-text_test.html
index c48ec8a194..083eac470e 100644
--- a/polygerrit-ui/app/elements/shared/gr-formatted-text/gr-formatted-text_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-formatted-text/gr-formatted-text_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-editable-label</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-hovercard/gr-hovercard_test.html b/polygerrit-ui/app/elements/shared/gr-hovercard/gr-hovercard_test.html
index 81c73ab7fd..21f692db9e 100644
--- a/polygerrit-ui/app/elements/shared/gr-hovercard/gr-hovercard_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-hovercard/gr-hovercard_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-hovercard</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-annotation-actions-context_test.html b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-annotation-actions-context_test.html
index c8ef2f8e98..a14612bb76 100644
--- a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-annotation-actions-context_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-annotation-actions-context_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-annotation-actions-context</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-annotation-actions-js-api_test.html b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-annotation-actions-js-api_test.html
index 7a6b2548ea..e72fc631bb 100644
--- a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-annotation-actions-js-api_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-annotation-actions-js-api_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-annotation-actions-js-api-js-api</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-api-utils_test.html b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-api-utils_test.html
index 13e3a06709..d01566af80 100644
--- a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-api-utils_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-api-utils_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-api-interface</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-change-actions-js-api_test.html b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-change-actions-js-api_test.html
index 6f44b1a1a4..1d5e423de2 100644
--- a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-change-actions-js-api_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-change-actions-js-api_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-change-actions-js-api</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-change-reply-js-api_test.html b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-change-reply-js-api_test.html
index a67c8eb8f7..0360f85872 100644
--- a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-change-reply-js-api_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-change-reply-js-api_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-change-reply-js-api</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-gerrit_test.html b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-gerrit_test.html
index 3bbed62bd0..2d87497fa4 100644
--- a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-gerrit_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-gerrit_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-api-interface</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-js-api-interface_test.html b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-js-api-interface_test.html
index a7fcfabf25..ea1ac91abc 100644
--- a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-js-api-interface_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-js-api-interface_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-api-interface</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-plugin-action-context_test.html b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-plugin-action-context_test.html
index 8f823522d4..08c784abfc 100644
--- a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-plugin-action-context_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-plugin-action-context_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-plugin-action-context</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-plugin-endpoints_test.html b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-plugin-endpoints_test.html
index 5617d73afb..ec8710bf44 100644
--- a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-plugin-endpoints_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-plugin-endpoints_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-plugin-endpoints</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-plugin-loader_test.html b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-plugin-loader_test.html
index 1cbe2311d2..c972f533a5 100644
--- a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-plugin-loader_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-plugin-loader_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-plugin-host</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-plugin-rest-api_test.html b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-plugin-rest-api_test.html
index 4c17f46d90..fcc3b66949 100644
--- a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-plugin-rest-api_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-plugin-rest-api_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-plugin-rest-api</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-label-info/gr-label-info_test.html b/polygerrit-ui/app/elements/shared/gr-label-info/gr-label-info_test.html
index a3af731787..a340550421 100644
--- a/polygerrit-ui/app/elements/shared/gr-label-info/gr-label-info_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-label-info/gr-label-info_test.html
@@ -16,6 +16,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-label-info</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-labeled-autocomplete/gr-labeled-autocomplete_test.html b/polygerrit-ui/app/elements/shared/gr-labeled-autocomplete/gr-labeled-autocomplete_test.html
index 7e83aafb45..99a038eadf 100644
--- a/polygerrit-ui/app/elements/shared/gr-labeled-autocomplete/gr-labeled-autocomplete_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-labeled-autocomplete/gr-labeled-autocomplete_test.html
@@ -16,6 +16,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 -->
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-labeled-autocomplete</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-lib-loader/gr-lib-loader_test.html b/polygerrit-ui/app/elements/shared/gr-lib-loader/gr-lib-loader_test.html
index 89672a1ade..f2e5e3dfb6 100644
--- a/polygerrit-ui/app/elements/shared/gr-lib-loader/gr-lib-loader_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-lib-loader/gr-lib-loader_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-lib-loader</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-limited-text/gr-limited-text_test.html b/polygerrit-ui/app/elements/shared/gr-limited-text/gr-limited-text_test.html
index 1c6358c8c5..889b786c6c 100644
--- a/polygerrit-ui/app/elements/shared/gr-limited-text/gr-limited-text_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-limited-text/gr-limited-text_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-limited-text</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-linked-chip/gr-linked-chip_test.html b/polygerrit-ui/app/elements/shared/gr-linked-chip/gr-linked-chip_test.html
index 0ba6194e1a..c8de3df4ab 100644
--- a/polygerrit-ui/app/elements/shared/gr-linked-chip/gr-linked-chip_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-linked-chip/gr-linked-chip_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-linked-chip</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-linked-text/gr-linked-text_test.html b/polygerrit-ui/app/elements/shared/gr-linked-text/gr-linked-text_test.html
index 6e46df17a5..4fa4390215 100644
--- a/polygerrit-ui/app/elements/shared/gr-linked-text/gr-linked-text_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-linked-text/gr-linked-text_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-linked-text</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-list-view/gr-list-view_test.html b/polygerrit-ui/app/elements/shared/gr-list-view/gr-list-view_test.html
index 95eebc982b..55aab8217e 100644
--- a/polygerrit-ui/app/elements/shared/gr-list-view/gr-list-view_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-list-view/gr-list-view_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-list-view</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-overlay/gr-overlay_test.html b/polygerrit-ui/app/elements/shared/gr-overlay/gr-overlay_test.html
index 52bba7ac27..d43c739fea 100644
--- a/polygerrit-ui/app/elements/shared/gr-overlay/gr-overlay_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-overlay/gr-overlay_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-overlay</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-page-nav/gr-page-nav_test.html b/polygerrit-ui/app/elements/shared/gr-page-nav/gr-page-nav_test.html
index c1f7aceb41..a54d7a302f 100644
--- a/polygerrit-ui/app/elements/shared/gr-page-nav/gr-page-nav_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-page-nav/gr-page-nav_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-page-nav</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-repo-branch-picker/gr-repo-branch-picker_test.html b/polygerrit-ui/app/elements/shared/gr-repo-branch-picker/gr-repo-branch-picker_test.html
index 8e50b09642..67b82f98bd 100644
--- a/polygerrit-ui/app/elements/shared/gr-repo-branch-picker/gr-repo-branch-picker_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-repo-branch-picker/gr-repo-branch-picker_test.html
@@ -16,6 +16,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 -->
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-repo-branch-picker</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-rest-api-interface/gr-auth_test.html b/polygerrit-ui/app/elements/shared/gr-rest-api-interface/gr-auth_test.html
index dd5f0ba935..5fa476ff83 100644
--- a/polygerrit-ui/app/elements/shared/gr-rest-api-interface/gr-auth_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-rest-api-interface/gr-auth_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-auth</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-rest-api-interface/gr-etag-decorator_test.html b/polygerrit-ui/app/elements/shared/gr-rest-api-interface/gr-etag-decorator_test.html
index f82779ab15..cfa164f449 100644
--- a/polygerrit-ui/app/elements/shared/gr-rest-api-interface/gr-etag-decorator_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-rest-api-interface/gr-etag-decorator_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-etag-decorator</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-rest-api-interface/gr-rest-api-interface_test.html b/polygerrit-ui/app/elements/shared/gr-rest-api-interface/gr-rest-api-interface_test.html
index 1b06685d7b..0a51d2641d 100644
--- a/polygerrit-ui/app/elements/shared/gr-rest-api-interface/gr-rest-api-interface_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-rest-api-interface/gr-rest-api-interface_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-rest-api-interface</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-rest-api-interface/gr-rest-apis/gr-rest-api-helper_test.html b/polygerrit-ui/app/elements/shared/gr-rest-api-interface/gr-rest-apis/gr-rest-api-helper_test.html
index 6a6623d06e..32d21666e7 100644
--- a/polygerrit-ui/app/elements/shared/gr-rest-api-interface/gr-rest-apis/gr-rest-api-helper_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-rest-api-interface/gr-rest-apis/gr-rest-api-helper_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-rest-api-helper</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-rest-api-interface/gr-reviewer-updates-parser_test.html b/polygerrit-ui/app/elements/shared/gr-rest-api-interface/gr-reviewer-updates-parser_test.html
index bbdbb31235..f2ccfb7fb8 100644
--- a/polygerrit-ui/app/elements/shared/gr-rest-api-interface/gr-reviewer-updates-parser_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-rest-api-interface/gr-reviewer-updates-parser_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-reviewer-updates-parser</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-select/gr-select_test.html b/polygerrit-ui/app/elements/shared/gr-select/gr-select_test.html
index 757e38e3d4..670f383ecc 100644
--- a/polygerrit-ui/app/elements/shared/gr-select/gr-select_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-select/gr-select_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-select</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-shell-command/gr-shell-command_test.html b/polygerrit-ui/app/elements/shared/gr-shell-command/gr-shell-command_test.html
index cc779c7847..ee0b64fdcd 100644
--- a/polygerrit-ui/app/elements/shared/gr-shell-command/gr-shell-command_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-shell-command/gr-shell-command_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-shell-command</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-storage/gr-storage_test.html b/polygerrit-ui/app/elements/shared/gr-storage/gr-storage_test.html
index 5642e154f5..b560c56834 100644
--- a/polygerrit-ui/app/elements/shared/gr-storage/gr-storage_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-storage/gr-storage_test.html
@@ -16,6 +16,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 -->
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-storage</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-textarea/gr-textarea_test.html b/polygerrit-ui/app/elements/shared/gr-textarea/gr-textarea_test.html
index cd0a8c4823..c33b2ae11b 100644
--- a/polygerrit-ui/app/elements/shared/gr-textarea/gr-textarea_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-textarea/gr-textarea_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-textarea</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-tooltip-content/gr-tooltip-content_test.html b/polygerrit-ui/app/elements/shared/gr-tooltip-content/gr-tooltip-content_test.html
index e2c2f60234..a8fc18a647 100644
--- a/polygerrit-ui/app/elements/shared/gr-tooltip-content/gr-tooltip-content_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-tooltip-content/gr-tooltip-content_test.html
@@ -16,6 +16,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 -->
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-storage</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/gr-tooltip/gr-tooltip_test.html b/polygerrit-ui/app/elements/shared/gr-tooltip/gr-tooltip_test.html
index 7d599b2320..b69d945e3e 100644
--- a/polygerrit-ui/app/elements/shared/gr-tooltip/gr-tooltip_test.html
+++ b/polygerrit-ui/app/elements/shared/gr-tooltip/gr-tooltip_test.html
@@ -16,6 +16,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 -->
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-storage</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/elements/shared/revision-info/revision-info_test.html b/polygerrit-ui/app/elements/shared/revision-info/revision-info_test.html
index 4eb9337ac8..2d89b304f0 100644
--- a/polygerrit-ui/app/elements/shared/revision-info/revision-info_test.html
+++ b/polygerrit-ui/app/elements/shared/revision-info/revision-info_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>revision-info</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/scripts/gr-display-name-utils/gr-display-name-utils_test.html b/polygerrit-ui/app/scripts/gr-display-name-utils/gr-display-name-utils_test.html
index 01b36e9d6e..818ddaab3c 100644
--- a/polygerrit-ui/app/scripts/gr-display-name-utils/gr-display-name-utils_test.html
+++ b/polygerrit-ui/app/scripts/gr-display-name-utils/gr-display-name-utils_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-display-name-utils</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/scripts/gr-email-suggestions-provider/gr-email-suggestions-provider_test.html b/polygerrit-ui/app/scripts/gr-email-suggestions-provider/gr-email-suggestions-provider_test.html
index 979fe80c38..80d3590f30 100644
--- a/polygerrit-ui/app/scripts/gr-email-suggestions-provider/gr-email-suggestions-provider_test.html
+++ b/polygerrit-ui/app/scripts/gr-email-suggestions-provider/gr-email-suggestions-provider_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-email-suggestions-provider</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/scripts/gr-group-suggestions-provider/gr-group-suggestions-provider_test.html b/polygerrit-ui/app/scripts/gr-group-suggestions-provider/gr-group-suggestions-provider_test.html
index 5bd3fbd25d..2111b7e972 100644
--- a/polygerrit-ui/app/scripts/gr-group-suggestions-provider/gr-group-suggestions-provider_test.html
+++ b/polygerrit-ui/app/scripts/gr-group-suggestions-provider/gr-group-suggestions-provider_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-group-suggestions-provider</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/scripts/gr-reviewer-suggestions-provider/gr-reviewer-suggestions-provider_test.html b/polygerrit-ui/app/scripts/gr-reviewer-suggestions-provider/gr-reviewer-suggestions-provider_test.html
index 7bcecb6f9c..8774d48c13 100644
--- a/polygerrit-ui/app/scripts/gr-reviewer-suggestions-provider/gr-reviewer-suggestions-provider_test.html
+++ b/polygerrit-ui/app/scripts/gr-reviewer-suggestions-provider/gr-reviewer-suggestions-provider_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <title>gr-reviewer-suggestions-provider</title>
 
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
diff --git a/polygerrit-ui/app/scripts/util_test.html b/polygerrit-ui/app/scripts/util_test.html
index 9409519563..a3893d29b5 100644
--- a/polygerrit-ui/app/scripts/util_test.html
+++ b/polygerrit-ui/app/scripts/util_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
 <script src="/node_modules/@webcomponents/webcomponentsjs/webcomponents-lite.js"></script>
 <script src="/components/wct-browser-legacy/browser.js"></script>
diff --git a/polygerrit-ui/app/services/app-context-init_test.html b/polygerrit-ui/app/services/app-context-init_test.html
index 8ee78ba019..f5dc7d1cee 100644
--- a/polygerrit-ui/app/services/app-context-init_test.html
+++ b/polygerrit-ui/app/services/app-context-init_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
 <script src="/node_modules/@webcomponents/webcomponentsjs/webcomponents-lite.js"></script>
 <script src="/components/wct-browser-legacy/browser.js"></script>
diff --git a/polygerrit-ui/app/services/flags_test.html b/polygerrit-ui/app/services/flags_test.html
index ff94494b8d..51efb0d6f8 100644
--- a/polygerrit-ui/app/services/flags_test.html
+++ b/polygerrit-ui/app/services/flags_test.html
@@ -17,6 +17,7 @@ limitations under the License.
 -->
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
+<meta charset="utf-8">
 <script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>
 <script src="/node_modules/@webcomponents/webcomponentsjs/webcomponents-lite.js"></script>
 <script src="/components/wct-browser-legacy/browser.js"></script>
diff --git a/polygerrit-ui/app/test/index.html b/polygerrit-ui/app/test/index.html
index a0456d8ef1..63df0be695 100644
--- a/polygerrit-ui/app/test/index.html
+++ b/polygerrit-ui/app/test/index.html
@@ -15,8 +15,8 @@
 <!DOCTYPE html>
 
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
-<title>Elements Test Runner</title>
 <meta charset="utf-8">
+<title>Elements Test Runner</title>
 <script src="/node_modules/@webcomponents/webcomponentsjs/webcomponents-lite.js"></script>
 <script src="/node_modules/web-component-tester/browser.js"></script>
 <style>