@antosart, PTAL! Thanks!

I'm not sure this is enough. This change makes the effective directive value for name and policy return non-null. The subsumption algorithm though basically only implements the case in which the directive value is a source list (in fact there are a series of TODOs for 'frame-ancestors', 'plugin-types' an 'sandbox').

I guess you would need to specify how subsumption is supposed to work for trusted types policies. Actually, I believe some minimal amount of work would be needed also for the intersection algorithm which has the same problem.

(A not aside: I think this spec does not autobuild, so you have to generate the index.html within the PR.)

@antosart , @shhnjk , any updates on this one? If we need changes to subsumption and intersection algorithms for trusted types policies, is this something you plan to do? Just trying to understand the current state. Thanks.