willSendRequest is calling maybeLoadFallbackForRedirect, which can delete “this”. After that, some new logging code tries to access “this” and causes the crash. <rdar://problem/46901747>
Created attachment 357963 [details] Patch
Comment on attachment 357963 [details] Patch r=me
Comment on attachment 357963 [details] Patch Clearing flags on attachment: 357963 Committed r239514: <https://trac.webkit.org/changeset/239514>
All reviewed patches have been landed. Closing bug.