[Webkit-unassigned] [Bug 179728] New: CSP: Hide nonce values from the DOM

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=179728

            Bug ID: 179728
           Summary: CSP: Hide nonce values from the DOM
           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: mkwst at chromium.org
                CC: dbates at webkit.org, wilander at apple.com

(Copy/pasting from Mozilla's https://bugzilla.mozilla.org/show_bug.cgi?id=1374612)

"""
Prevent nonce exfiltration via CSS selectors and similar tricks. By hiding the nonce from the DOM those kind of CSP policy bypasses can be prevented.

See also:
https://github.com/whatwg/html/pull/2373
https://github.com/w3c/web-platform-tests/tree/master/content-security-policy/nonce-hiding
"""

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