[Webkit-unassigned] [Bug 153158] New: CSP: 'blob:' URLs should not match 'self' in CSP source expression lists.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=153158

            Bug ID: 153158
           Summary: CSP: 'blob:' URLs should not match 'self' in CSP
                    source expression lists.
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Local Build
          Hardware: All
                OS: All
            Status: NEW
          Keywords: BlinkMergeCandidate
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: dbates at webkit.org

We should merge <https://src.chromium.org/viewvc/blink?view=rev&revision=197354>.

'blob:' URLs should not match 'self' in CSP source expression lists.

Chrome is currently treating `'self'` as including `blob:` URLs. That's
against the spec (and Firefox), which requires whitelisting `blob:`
explicitly:

https://w3c.github.io/webappsec/specs/content-security-policy/#source-list-guid-matching.

This patch fixes our implementation.

Mozilla discussion here: https://bugzilla.mozilla.org/show_bug.cgi?id=1150957

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