[Webkit-unassigned] [Bug 161389] New: CachedResourceLoader is not taking into account fetch options to use or not cached resources

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=161389

            Bug ID: 161389
           Summary: CachedResourceLoader is not taking into account fetch
                    options to use or not cached resources
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: youennf at gmail.com

SubresourceLoader is doing redirection checks in CORS mode but not in No-Cors mode.
If a resource is fetched in no-cors mode, the cached resource may be reused in cors mode without revalidation each redirection.

Also, reusing a cached resource for another load with different fetch options has impact on the CachedResource.
Its response tainting and its origin clean in particular may not be correct.

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