CacheStorage::Engine::Caches::writeRecord is not always calling the completion handler
We should really move all CacheStorage callbacks to CompletionHandler to catch these potential issues. In the meantime, there is an issue with Caches::writeRecord in private browsing mode and when network cache is not calling back the blob.
Created attachment 334471 [details] Patch
Comment on attachment 334471 [details] Patch Clearing flags on attachment: 334471 Committed r228935: <https://trac.webkit.org/changeset/228935>
All reviewed patches have been landed. Closing bug.
<rdar://problem/37803382>