Null check m_resource in SubresourceLoader::didReceiveResponse
Created attachment 428845 [details] Patch
<rdar://problem/78084804>
r277594
Let's do a debug ASSERT and a RELEASE_LOG_FAULT for the null resource condition, since we do not believe it is valid, and continuing might sometimes end in mysterious loading bugs.
Reopening to attach new patch.
Created attachment 428854 [details] Patch
r277603