via WKBundleFrameGetJavaScriptContextForWorld <rdar://problem/48981573>
Created attachment 370443 [details] Adds null check
Comment on attachment 370443 [details] Adds null check Clearing flags on attachment: 370443 Committed r245653: <https://trac.webkit.org/changeset/245653>
All reviewed patches have been landed. Closing bug.