It shows a nice error page saying there was an error: SecurityError: DOM Exception 18: An attempt was made to break through the security policy of the user agent. (at InspectorFrontendHostStub.js:50:39) It seems WebSockets are blocked.
Adding ws to connect-src fixes this, but then it complains that InspectorFrontendHost.zoomFactor is undefined (this is probably due to r199396)
Created attachment 276379 [details] Patch
I don't think this is specific to GTK at all.
Created attachment 276380 [details] Patch
(In reply to comment #3) > I don't think this is specific to GTK at all. It affects anyone using InspectorFrontendHostStub, which we don't use on the Apple ports. This does open web sockets for us, even though the Inspector does not need them on our ports. That is probably fine.
Comment on attachment 276380 [details] Patch Clearing flags on attachment: 276380 Committed r199541: <http://trac.webkit.org/changeset/199541>
All reviewed patches have been landed. Closing bug.