We are missing the encoding of a boolean in ArgumentCoder<ResourceError> and, therefore, we always get the default value (false) for ResourceError::isCancellation() with errors being sent through the IPC.
This is impacting directly the implementation of QtWebPageLoadClient::dispatchLoadFailed, line 95.
Created attachment 135142 [details]
Comment on attachment 135142 [details]
Clearing flags on attachment: 135142
Committed r112921: <http://trac.webkit.org/changeset/112921>
All reviewed patches have been landed. Closing bug.