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| <meta charset=utf-8> | |
| <body> | |
| <!--Step 3--> | |
| <iframe src="https://{{hosts[alt][]}}:{{ports[https][0]}}/html/browsers/windows/post-message/resources/third-party-to-third-party-different-partition-same-origin-iframe-b.https.html"></iframe> | |
| </body> |