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Can server send PRIORITY_UPDATE? #121

Closed dtikhonov closed 4 years ago

dtikhonov commented 4 years ago

Section 5 discusses how client can re-prioritize using the _PRIORITYUPDATE frame and Section 6 discusses how the server can override priority using the priority header. It seems, then, that the server cannot send the _PRIORITYUPDATE frame, but it is not forbidden in the draft.

LPardue commented 4 years ago

Thanks for raising the issue. This is a gap in the spec and will need filling. The answer depends a little on the direction that the design takes in the WG; the salient question, I think, is: what is the collaboration story for reprioritization?

Once there is a answer, we can lock down some of the normative text in the TODO placeholder 

TODO: add more description of how to handle things like receiving PRIORITY_UPDATE on wrong stream, a PRIORITY_UPDATE with an invalid ID, etc.
LPardue commented 4 years ago

This issue is still valid but I'm migrating it to the http-extensions repo for continued discussion, https://github.com/httpwg/http-extensions/issues/1079