[Webkit-unassigned] [Bug 153230] New: Network cache: old pages returned by disk cache on history navigation after session is restored

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=153230

            Bug ID: 153230
           Summary: Network cache: old pages returned by disk cache on
                    history navigation after session is restored
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit2
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: cgarcia at igalia.com
                CC: cdumez at apple.com, koivisto at iki.fi

Since r181734, the network cache never revalidates resources for history navigation. This is good for the memory cache, but in the case of disk cache, we might end up with outdated pages when restoring the session. As anttik pointed out on IRC we would still want to not revalidate resources for history navigation after a web process crash, especially important on mobile, in which case the page and memory caches are lost. But when restoring the session at browser startup we need a way to ensure pages are revalidated.

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