Propose first FLEDGE Origin Trial details #252
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jeffkaufman
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Jan 27, 2022
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| In the FOT#1, rendering these opaque URLs only in Fenced Frames will temporarily not be required, and they can instead be rendered in iframes as mentioned above. When [Fenced Frames are available for testing](#availability-of-other-technologies.), these opaque URLs will be renderable in Fenced Frames. At a later date, the ability to render opaque URLs in iframes will be removed. |
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How will this interact with CSP? If I have <iframe src="urn:uuid:1234abc..."> will this be (a) evaluated against my CSP as a urn:uuid: URL, (b) evaluated as the underlying https: URL, or (c) treated as planned for fenced frames?
If (a) it seems like adtech vendors will need to use navigator.deprecatedURNToURL() to get an https: URL, unless they're sure pages permit urn:uuid: sources for iframes.
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@brusshamilton, author of https://crrev.com/948399, do you know how URNs in iframes interact with CSP?
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