Re: [quicwg/base-drafts] Unidirectional Streams (#643)

[Martin Thomson <[e-mail]>]

martinthomson commented on this pull request.



> +ID MUST be treated as a HTTP_MALFORMED_PRIORITY error.
+
+The length of a PRIORITY frame is 9 octets.  A PRIORITY frame with any other
+length MUST be treated as a connection error of type HTTP_MALFORMED_PRIORITY.
+
+
+### CANCEL_REQUEST {#frame-cancel-request}
+
+The CANCEL_REQUEST frame (type=0x3) is used to request cancellation of a request
+prior to the response stream being created.  This frame can be used to cancel
+both outstanding requests initiated by a client and server push requests that
+are initiated with a PUSH_PROMISE.
+
+The frame identifies a client-initiated request by the stream ID that carried
+the request; a server push request is identified by Push ID (see
+{{frame-push-promise}}).

I should make that more consistent, but I had more room here to break the two out.  I think that I'm starting to warm to Christian's notion of this needing to draw from the same 32-bit space with a bit stolen to allow discrimination rather than rely on external signals.

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