Now that we send data out of the main thread, we sometime go too quickly and receiver might close the connection if receiving too much data.
Created attachment 399475 [details] Patch
Created attachment 399477 [details] Patch
Committed r261813: <https://trac.webkit.org/changeset/261813> All reviewed patches have been landed. Closing bug and clearing flags on attachment 399477 [details].
<rdar://problem/63343848>