NSInvalidArgumentException in [WebAVSampleBufferErrorListener observeValueForKeyPath:ofObject:change:context:]
<rdar://problem/47721094>
Created attachment 360802 [details] Patch
Comment on attachment 360802 [details] Patch Clearing flags on attachment: 360802 Committed r240834: <https://trac.webkit.org/changeset/240834>
All reviewed patches have been landed. Closing bug.