diff --git a/polygerrit-ui/app/BUILD b/polygerrit-ui/app/BUILD
index f334354170..04a1d69cbe 100644
--- a/polygerrit-ui/app/BUILD
+++ b/polygerrit-ui/app/BUILD
@@ -2,6 +2,7 @@ package(
     default_visibility = ["//visibility:public"],
 )
 
+load(":rules.bzl", "polygerrit_bundle")
 load("//tools/bzl:genrule2.bzl", "genrule2")
 load("@io_bazel_rules_closure//closure:defs.bzl", "closure_js_library", "closure_js_binary")
 load(
@@ -12,8 +13,8 @@ load(
     "js_component",
 )
 
-vulcanize(
-    name = "gr-app",
+polygerrit_bundle(
+    name = "polygerrit_ui",
     srcs = glob(
         [
             "**/*.html",
@@ -27,82 +28,7 @@ vulcanize(
         ],
     ),
     app = "elements/gr-app.html",
-    deps = ["//polygerrit-ui:polygerrit_components.bower_components"],
-)
-
-closure_js_library(
-    name = "closure_lib",
-    srcs = ["gr-app.js"],
-    convention = "GOOGLE",
-    # TODO(davido): Clean up these issues: http://paste.openstack.org/show/608548
-    # and remove this supression
-    suppress = ["JSC_UNUSED_LOCAL_ASSIGNMENT"],
-    deps = [
-        "//lib/polymer_externs:polymer_closure",
-        "@io_bazel_rules_closure//closure/library",
-    ],
-)
-
-closure_js_binary(
-    name = "closure_bin",
-    # Known issue: Closure compilation not compatible with Polymer behaviors.
-    # See: https://github.com/google/closure-compiler/issues/2042
-    compilation_level = "WHITESPACE_ONLY",
-    defs = [
-        "--polymer_pass",
-        "--jscomp_off=duplicate",
-        "--force_inject_library=es6_runtime",
-    ],
-    language = "ECMASCRIPT5",
-    deps = [":closure_lib"],
-)
-
-filegroup(
-    name = "top_sources",
-    srcs = [
-        "favicon.ico",
-        "index.html",
-    ],
-)
-
-filegroup(
-    name = "css_sources",
-    srcs = glob(["styles/**/*.css"]),
-)
-
-filegroup(
-    name = "app_sources",
-    srcs = [
-        "closure_bin.js",
-        "gr-app.html",
-    ],
-)
-
-genrule2(
-    name = "polygerrit_ui",
-    srcs = [
-        "//lib/fonts:robotomono",
-        "//lib/js:highlightjs_files",
-        ":top_sources",
-        ":css_sources",
-        ":app_sources",
-        # we extract from the zip, but depend on the component for license checking.
-        "@webcomponentsjs//:zipfile",
-        "//lib/js:webcomponentsjs",
-    ],
     outs = ["polygerrit_ui.zip"],
-    cmd = " && ".join([
-        "mkdir -p $$TMP/polygerrit_ui/{styles,fonts,bower_components/{highlightjs,webcomponentsjs},elements}",
-        "for f in $(locations :app_sources); do ext=$${f##*.}; cp -p $$f $$TMP/polygerrit_ui/elements/gr-app.$$ext; done",
-        "cp $(locations //lib/fonts:robotomono) $$TMP/polygerrit_ui/fonts/",
-        "for f in $(locations :top_sources); do cp $$f $$TMP/polygerrit_ui/; done",
-        "for f in $(locations :css_sources); do cp $$f $$TMP/polygerrit_ui/styles; done",
-        "for f in $(locations //lib/js:highlightjs_files); do cp $$f $$TMP/polygerrit_ui/bower_components/highlightjs/ ; done",
-        "unzip -qd $$TMP/polygerrit_ui/bower_components $(location @webcomponentsjs//:zipfile) webcomponentsjs/webcomponents-lite.js",
-        "cd $$TMP",
-        "find . -exec touch -t 198001010000 '{}' ';'",
-        "zip -qr $$ROOT/$@ *",
-    ]),
 )
 
 bower_component_bundle(
@@ -198,3 +124,49 @@ sh_test(
         "manual",
     ],
 )
+
+# Embed bundle
+polygerrit_bundle(
+    name = "polygerrit_embed_ui",
+    srcs = glob(
+        [
+            "**/*.html",
+            "**/*.js",
+        ],
+        exclude = [
+            "bower_components/**",
+            "index.html",
+            "test/**",
+            "**/*_test.html",
+        ],
+    ),
+    app = "embed/change-diff-views.html",
+    outs = ["polygerrit_embed_ui.zip"],
+)
+
+filegroup(
+    name = "embed_test_files",
+    srcs = glob(
+        [
+            "embed/**/*_test.html",
+        ],
+    ),
+)
+
+sh_test(
+    name = "embed_test",
+    size = "large",
+    srcs = ["embed_test.sh"],
+    data = [
+        "test/common-test-setup.html",
+        "embed/test.html",
+        ":embed_test_files",
+        ":polygerrit_embed_ui.zip",
+        ":test_components.zip",
+    ],
+    # Should not run sandboxed.
+    tags = [
+        "local",
+        "manual",
+    ],
+)
diff --git a/polygerrit-ui/app/embed/embed_test.html b/polygerrit-ui/app/embed/embed_test.html
new file mode 100644
index 0000000000..26ea8956a7
--- /dev/null
+++ b/polygerrit-ui/app/embed/embed_test.html
@@ -0,0 +1,51 @@
+<!DOCTYPE html>
+<!--
+Copyright (C) 2017 The Android Open Source Project
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+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">
+<title>change-diff-views-embed_test</title>
+
+<script src="../../../bower_components/webcomponentsjs/webcomponents-lite.min.js"></script>
+<script src="../../../bower_components/web-component-tester/browser.js"></script>
+<link rel="import" href="../polygerrit_ui/elements/change-diff-views.html"/>
+
+<script>void(0);</script>
+
+<test-fixture id="change-view">
+  <template>
+    <gr-change-view></gr-change-view>
+  </template>
+</test-fixture>
+
+<test-fixture id="diff-view">
+  <template>
+    <gr-diff-view></gr-diff-view>
+  </template>
+</test-fixture>
+
+<script>
+  suite('embed test', () => {
+    test('gr-change-view is embedded', () => {
+      const element = fixture('change-view');
+      assert.equal(element.is, 'gr-change-view');
+    });
+
+    test('diff-view is embedded', () => {
+      const element = fixture('diff-view');
+      assert.equal(element.is, 'gr-diff-view');
+    });
+  });
+</script>
diff --git a/polygerrit-ui/app/embed/test.html b/polygerrit-ui/app/embed/test.html
new file mode 100644
index 0000000000..0587562361
--- /dev/null
+++ b/polygerrit-ui/app/embed/test.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<!--
+Copyright (C) 2017 The Android Open Source Project
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+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">
+<title>Embed Test Runner</title>
+<meta charset="utf-8">
+<script src="../bower_components/webcomponentsjs/webcomponents-lite.min.js"></script>
+<script src="../bower_components/web-component-tester/browser.js"></script>
+<script>
+  WCT.loadSuites(['embed_test.html']);
+</script>
diff --git a/polygerrit-ui/app/embed_test.sh b/polygerrit-ui/app/embed_test.sh
new file mode 100755
index 0000000000..adcc653fd5
--- /dev/null
+++ b/polygerrit-ui/app/embed_test.sh
@@ -0,0 +1,57 @@
+#!/bin/sh
+
+set -ex
+
+t=$(mktemp -d || mktemp -d -t wct-XXXXXXXXXX)
+components=$TEST_SRCDIR/gerrit/polygerrit-ui/app/test_components.zip
+code=$TEST_SRCDIR/gerrit/polygerrit-ui/app/polygerrit_embed_ui.zip
+index=$TEST_SRCDIR/gerrit/polygerrit-ui/app/embed/test.html
+tests=$TEST_SRCDIR/gerrit/polygerrit-ui/app/embed/*_test.html
+
+unzip -qd $t $components
+unzip -qd $t $code
+mkdir -p $t/test
+cp $index $t/test/
+cp $tests $t/test/
+
+# For some reason wct tries to install selenium into its node_modules
+# directory on first run. If you've installed into /usr/local and
+# aren't running wct as root, you're screwed. Turning this option off
+# through skipSeleniumInstall seems to still work, so there's that.
+
+# Sauce tests are disabled by default in order to run local tests
+# only.  Run it with (saucelabs.com account required; free for open
+# source): WCT_ARGS='--plugin sauce' ./polygerrit-ui/app/embed_test.sh
+
+cat <<EOF > $t/wct.conf.js
+module.exports = {
+      'suites': ['test'],
+      'webserver': {
+        'pathMappings': [
+          {'/components/bower_components': 'bower_components'}
+        ]
+      },
+      'plugins': {
+        'local': {
+          'skipSeleniumInstall': true
+        },
+        'sauce': {
+          'disabled': true,
+          'browsers': [
+            'OS X 10.12/chrome',
+            'Windows 10/chrome',
+            'Linux/firefox',
+            'OS X 10.12/safari',
+            'Windows 10/microsoftedge'
+          ]
+        }
+      }
+    };
+EOF
+
+export PATH="$(dirname $WCT):$(dirname $NPM):$PATH"
+
+cd $t
+test -n "${WCT}"
+
+$(basename ${WCT}) ${WCT_ARGS}
diff --git a/polygerrit-ui/app/rules.bzl b/polygerrit-ui/app/rules.bzl
new file mode 100644
index 0000000000..be80c13faf
--- /dev/null
+++ b/polygerrit-ui/app/rules.bzl
@@ -0,0 +1,94 @@
+load("//tools/bzl:genrule2.bzl", "genrule2")
+load("@io_bazel_rules_closure//closure:defs.bzl", "closure_js_library", "closure_js_binary")
+load(
+    "//tools/bzl:js.bzl",
+    "bower_component_bundle",
+    "vulcanize",
+    "bower_component",
+    "js_component",
+)
+
+def polygerrit_bundle(name, srcs, outs, app):
+  appName = app.split(".html")[0].split("/").pop() # eg: gr-app
+
+  closure_js_binary(
+    name = name + "_closure_bin",
+    # Known issue: Closure compilation not compatible with Polymer behaviors.
+    # See: https://github.com/google/closure-compiler/issues/2042
+    compilation_level = "WHITESPACE_ONLY",
+    defs = [
+      "--polymer_pass",
+      "--jscomp_off=duplicate",
+      "--force_inject_library=es6_runtime",
+    ],
+    language = "ECMASCRIPT5",
+    deps = [name + "_closure_lib"],
+  )
+
+  closure_js_library(
+    name = name + "_closure_lib",
+    srcs = [appName + ".js"],
+    convention = "GOOGLE",
+    # TODO(davido): Clean up these issues: http://paste.openstack.org/show/608548
+    # and remove this supression
+    suppress = ["JSC_UNUSED_LOCAL_ASSIGNMENT"],
+    deps = [
+      "//lib/polymer_externs:polymer_closure",
+      "@io_bazel_rules_closure//closure/library",
+    ],
+  )
+
+  vulcanize(
+    name = appName,
+    srcs = srcs,
+    app = app,
+    deps = ["//polygerrit-ui:polygerrit_components.bower_components"],
+  )
+
+  native.filegroup(
+    name = name + "_app_sources",
+    srcs = [
+      name + "_closure_bin.js",
+      appName + ".html",
+    ],
+  )
+
+  native.filegroup(
+    name = name + "_css_sources",
+    srcs = native.glob(["styles/**/*.css"]),
+  )
+
+  native.filegroup(
+    name = name + "_top_sources",
+    srcs = [
+        "favicon.ico",
+        "index.html",
+    ],
+  )
+
+  genrule2(
+    name = name,
+    srcs = [
+      name + "_app_sources",
+      name + "_css_sources",
+      name + "_top_sources",
+      "//lib/fonts:robotomono",
+      "//lib/js:highlightjs_files",
+      # we extract from the zip, but depend on the component for license checking.
+      "@webcomponentsjs//:zipfile",
+      "//lib/js:webcomponentsjs"
+    ],
+    outs = outs,
+    cmd = " && ".join([
+      "mkdir -p $$TMP/polygerrit_ui/{styles,fonts,bower_components/{highlightjs,webcomponentsjs},elements}",
+      "for f in $(locations " + name + "_app_sources); do ext=$${f##*.}; cp -p $$f $$TMP/polygerrit_ui/elements/"  + appName + ".$$ext; done",
+      "cp $(locations //lib/fonts:robotomono) $$TMP/polygerrit_ui/fonts/",
+      "for f in $(locations " + name + "_top_sources); do cp $$f $$TMP/polygerrit_ui/; done",
+      "for f in $(locations "+ name + "_css_sources); do cp $$f $$TMP/polygerrit_ui/styles; done",
+      "for f in $(locations //lib/js:highlightjs_files); do cp $$f $$TMP/polygerrit_ui/bower_components/highlightjs/ ; done",
+      "unzip -qd $$TMP/polygerrit_ui/bower_components $(location @webcomponentsjs//:zipfile) webcomponentsjs/webcomponents-lite.js",
+      "cd $$TMP",
+      "find . -exec touch -t 198001010000 '{}' ';'",
+      "zip -qr $$ROOT/$@ *",
+    ]),
+  )
diff --git a/polygerrit-ui/app/run_test.sh b/polygerrit-ui/app/run_test.sh
index c2421ad5aa..0edf41c5b0 100755
--- a/polygerrit-ui/app/run_test.sh
+++ b/polygerrit-ui/app/run_test.sh
@@ -21,4 +21,5 @@ bazel test \
       --test_env="NPM=${npm_bin}" \
       --test_env="DISPLAY=${DISPLAY}" \
       "$@" \
+      //polygerrit-ui/app:embed_test \
       //polygerrit-ui/app:wct_test