Issue 6953 - Update frame structure for data URI frames

ext/background.js

Index: ext/background.js
===================================================================
--- a/ext/background.js
+++ b/ext/background.js
@@ -246,20 +246,20 @@
     updatePageFrameStructure(details.frameId, details.tabId, details.url,
                              details.parentFrameId);
   },
   {types: ["main_frame", "sub_frame"], urls: ["http://*/*", "https://*/*"]},
   ["responseHeaders"]);
 
   browser.webNavigation.onBeforeNavigate.addListener(details =>
   {
-    // Requests can be made by about:blank frames before the frame's
-    // onCommitted event has fired, so we update the frame structure
-    // for those now.
-    if (details.url.startsWith("about:"))
+    // Requests can be made by about: and data: frames before the frame's
+    // onCommitted event has fired, so we update the frame structure for those
+    // now.
+    if (/^(about|data):/.test(details.url))

[Sebastian Noack, 2018/09/17 16:02:31]

Nit: I'm not sure if a regular expression is justified here.

[Manish Jethani, 2018/09/21 20:32:24]

Changed to String.startsWith.

I have a hunch that the regular expression is better choice though, but I'll
leave it like it is for now.

     {
       updatePageFrameStructure(details.frameId, details.tabId, details.url,
                                details.parentFrameId);
     }
   });
 
   browser.webNavigation.onCommitted.addListener(details =>
   {