Add Permissions-Policy #18250
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Add Permissions-Policy #18250
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Summary
The
Feature-Policyheader changed toPermissions-Policysome time ago. This PR addsPermission-PolicyBCD, keeping the existingFeature-Policydata but classifying it as support under an alternative name.This is part of the work described at mdn/content#22347
See my research document at https://docs.google.com/document/d/14xHANU3n43PfJR_dCpEwVCiVYv12BAfGqOICNvd79R4/edit#heading=h.mahbkxhoku5t for a list of the
Permissions-Policydirectives I am intending to implement on MDN as part of this work. This gives us parity with what was previously documented underFeature-Policy, but it adds a few more that are known to be supported, and it removes mention of some that were obviously being worked on at some point, but never seem to have gotten any traction.Note — I have not yet deleted the
Feature-Policy.jsonfile, so that the existing docs don't break if the new BCD is merged and imported sooner than the MDN content is updated. We can always delete that later on.Test results and supporting details
New information was largely gotten from https://github.com/w3c/webappsec-permissions-policy/blob/main/features.md.
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