Created attachment 247124 [details]
See attached sample.
This is a nightly or local build, isn't it supposed to use WebKit persistent cache, and not CFNetwork's?
I don't know if this could happen when actually idling, something needed to send that clearCacheForOrigin message first.
Why is this cache clearing code running in a web process in the first place? For the legacy networking that doesn't use network process?
Probably, not sure.
// FIXME (Multi-WebProcess): <rdar://problem/12239765> There is no need to relaunch all processes. One process to take care of persistent cache is enough.
Has not reproduced.