Media: Skip cross-origin isolation for third-party page builders #27288

Job	Run time
Core running from src / Linux	2m 33s
Core running from build / MacOS	1m 21s
Core running from src / Windows	2m 43s
Core running from build / Linux	1m 40s
Core running from src / MacOS	1m 14s
Core running from build / Windows	2m 55s
Slack Notifications	0s
Failed workflow tasks	0s
	12m 26s

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