Set the NSURLSessionTask priority to match the request's priority NSURLSessionTask priority: https://developer.apple.com/reference/foundation/nsurlsessiontask/1410569-priority This maps to HTTP/2 request prioritization.
<rdar://problem/28881392>
<rdar://problem/30823246>
Created attachment 303287 [details] [PATCH] Proposed Fix
Comment on attachment 303287 [details] [PATCH] Proposed Fix Clearing flags on attachment: 303287 Committed r213354: <http://trac.webkit.org/changeset/213354>
All reviewed patches have been landed. Closing bug.