I’ve just read the “Better HTTP/2 Prioritization for a Faster Web” article:
And the HTTP/2 response header cf-priority is mentioned as available from workers. My question is if this header is also available for “normal” proxy-ed traffic as set by a “normal” HTTP server.
(As for example the Link header is used to implement server-side push.)
I’ve just experimented with this feature (without workers) and it doesn’t seem to actually work… (Perhaps web-workers is indeed a “requirement”…)
Moreover, how can I test that even the “default” actually works, because in my experiments it doesn’t seem to work correctly, as the images are sent before any CSS…