Josh Matthews 6526ee532a script: Use result of determining the origin in more cases. (#43732) ...

We were previously conflating the concept of a navigation request's
origin with the origin of the resulting document. These changes ensure
that the navigation request's origin is based on the navigation
initiator's origin, and the document's origin is not computed until
after the navigation response is received.

The most visible effect of these changes is that documents in sandboxed
iframes now correctly have an opaque origin.

Testing: Lots of new passing tets.

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

2026-03-28 10:03:12 +00:00

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