If a client calls WKPageGoToBackForwardListItem, and then WKPageCopyPendingAPIRequestURL, the resulting URL is null. It should be the URL of the back/forward item. This is an oversight from when this feature was recently added.
Created attachment 83033 [details] Patch that adds the missing call.
Comment on attachment 83033 [details] Patch that adds the missing call. r=me
Checked in as r79050.