| Non-initial empty documents (about:blank) should inherit their cross-origin-opener-policy from the navigation's initiator top level document, if the initiator and its top level document are same-origin, or default (to unsafe-none) otherwise. |
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| Create the opener popup with a given COOP openerCOOP. |
| Add iframe to the opener popup that is either same-origin or cross-origin. |
| Opener opens a new window, to a network document with the same origin and COOP value as opener. |
| Opener's iframe navigates its parent frame (opener) to about:blank. |
| Verify the openee still has access to its opener. |
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| PASS Navigate top to about:blank from iframe with opener COOP: |header(Cross-Origin-Opener-Policy,same-origin), iframe origin: https://localhost:9443 |
| FAIL Navigate top to about:blank from iframe with opener COOP: |header(Cross-Origin-Opener-Policy,same-origin), iframe origin: https://127.0.0.1:9443 assert_equals: expected "about:blank loaded" but got "about:blank NOT loaded" |
| FAIL Navigate top to about:blank from iframe with opener COOP: |header(Cross-Origin-Opener-Policy,same-origin-allow-popups), iframe origin: https://127.0.0.1:9443 assert_equals: expected "about:blank loaded" but got "about:blank NOT loaded" |
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