Bug 1459655 - Restore about flag for about:home. r=k88hudson

MozReview-Commit-ID: GLdEBW8ewDd

--HG--
extra : rebase_source : 2b953784801a7c1f119bc43f4a13c4504b7f5cd2

browser/components/about/AboutRedirector.cpp

@@ -84,7 +84,7 @@ static const RedirEntry kRedirMap[] = {
     nsIAboutModule::ALLOW_SCRIPT |
     nsIAboutModule::HIDE_FROM_ABOUTABOUT },
   // Actual activity stream URL for home and newtab are set in channel creation
-  { "home", "about:blank", ACTIVITY_STREAM_FLAGS },
+  { "home", "about:blank", ACTIVITY_STREAM_FLAGS | nsIAboutModule::MAKE_LINKABLE }, // Bug 1438367 to try removing MAKE_LINKABLE again
   { "newtab", "about:blank", ACTIVITY_STREAM_FLAGS },
   { "library", "chrome://browser/content/aboutLibrary.xhtml",
     nsIAboutModule::URI_MUST_LOAD_IN_CHILD |

browser/extensions/activity-stream/install.rdf.in

@@ -8,7 +8,7 @@
     <em:type>2</em:type>
     <em:bootstrap>true</em:bootstrap>
     <em:unpack>false</em:unpack>
-    <em:version>2018.05.04.1204-6a362de7</em:version>
+    <em:version>2018.05.11.1144-66b23ff4</em:version>
     <em:name>Activity Stream</em:name>
     <em:description>A rich visual history feed and a reimagined home page make it easier than ever to find exactly what you're looking for in Firefox.</em:description>
     <em:multiprocessCompatible>true</em:multiprocessCompatible>

browser/extensions/activity-stream/prerendered/locales/ach/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/ach/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/an/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/an/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/ar/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/ar/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/ast/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/ast/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/az/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/az/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/be/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/be/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/bg/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/bg/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/bn-BD/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/bn-BD/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/bn-IN/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/bn-IN/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/br/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/br/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/bs/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/bs/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/ca/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/ca/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/cak/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/cak/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/crh/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/crh/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/cs/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/cs/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/cy/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/cy/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/da/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/da/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/de/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/de/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/dsb/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/dsb/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/el/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/el/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/en-CA/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/en-CA/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/en-GB/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/en-GB/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/en-US/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/en-US/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/eo/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/eo/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/es-AR/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/es-AR/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/es-CL/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/es-CL/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/es-ES/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/es-ES/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/es-MX/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/es-MX/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/et/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/et/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/eu/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/eu/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/fa/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/fa/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/ff/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/ff/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/fi/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/fi/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/fr/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/fr/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/fy-NL/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/fy-NL/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/ga-IE/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/ga-IE/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/gd/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/gd/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/gl/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/gl/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/gn/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/gn/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/gu-IN/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/gu-IN/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/he/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/he/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/hi-IN/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/hi-IN/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/hr/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/hr/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/hsb/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/hsb/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/hu/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/hu/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/hy-AM/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/hy-AM/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/ia/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/ia/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/id/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/id/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/it/activity-stream-prerendered.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -34,6 +40,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>

browser/extensions/activity-stream/prerendered/locales/it/activity-stream.html

@@ -13,7 +13,13 @@
     <div id="snippets-container">
       <div id="snippets"></div>
     </div>
-    <script>
+    <script>(() => {
+// Clear out any prerendered content if we shouldn't continue loading
+if (top !== window) {
+  document.documentElement.innerHTML = "";
+  return;
+}
+
 // Don't directly load the following scripts as part of html to let the page
 // finish loading to render the content sooner.
 for (const src of [
@@ -33,6 +39,6 @@ for (const src of [
   script.async = false;
   script.src = src;
 }
-    </script>
+    })();</script>
   </body>
 </html>