[Webkit-unassigned] [Bug 204375] New: Fix Timing-Allow-Origin check in ResourceTiming

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Tue Nov 19 14:09:53 PST 2019


https://bugs.webkit.org/show_bug.cgi?id=204375

            Bug ID: 204375
           Summary: Fix Timing-Allow-Origin check in ResourceTiming
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: npm at chromium.org

In https://github.com/web-platform-tests/wpt/pull/20320 I added a test to check the behavior landing in https://github.com/whatwg/fetch/pull/955. Essentially there are two changes:

Same-origin check is replaced with 'response tainting' from Fetch.
When Fetch's 'tainted origin flag' is set, having a TAO header equal to the request origin is not a valid way to pass the TAO check (instead, requires '*' or 'null').
Use https://wpt.fyi/results/resource-timing/crossorigin-sandwich-TAO.sub.html?label=master&label=experimental to know whether this passes on Safari (probably doesn't but hasn't loaded the test yet).

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