The first Media over QUIC CDN: Cloudflare

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brycewray ◴[22 Aug 25 20:59 UTC] No.44989742[source]▶

>>44987924 (OP) #

Semi-related and just FYI for Firefox users who visit Cloudflare-hosted, HTTP/3-using sites:

https://bugzilla.mozilla.org/show_bug.cgi?id=1979683

replies(3): >>44989781 #>>44989867 #>>44991259 #

1. vient ◴[22 Aug 25 21:02 UTC] No.44989781[source]▶

>>44989742 #

Limited to macOS? Does not reproduce in FF 141 and 142 on Windows.

replies(2): >>44990564 #>>44991264 #

2. brycewray ◴[22 Aug 25 22:19 UTC] No.44990564[source]▶

>>44989781 (TP) #

No, I have also observed it in Firefox (via Flatpak) on Fedora Linux 42. When I filed the original GH issue that webcompat-bot turned into this Bugzilla item (https://github.com/webcompat/web-bugs/issues/168913), my full report didn't make it into Bugzilla.

3. joshcartme ◴[22 Aug 25 23:35 UTC] No.44991264[source]▶

>>44989781 (TP) #

It reproduces for me in FF 142 on Windows. When I first went to https://cloudflare-quic.com/ it said HTTP/3, but after a few hard refreshes it says HTTP/2 and hasn't gone back to 3

replies(3): >>44991321 #>>44991332 #>>44992493 #

4. ◴[22 Aug 25 23:43 UTC] No.44991321[source]▶

>>44991264 #

5. vient ◴[22 Aug 25 23:44 UTC] No.44991332[source]▶

>>44991264 #

Oh, I see - hard refresh consistently shows HTTP/2 but after one or two soft refreshes it becomes HTTP/3 for me until next hard refresh.

Edit: it is always second soft refresh for me that starts showing HTTP/3. Computers work in mysterious ways sometimes.

replies(1): >>44991354 #

6. joshcartme ◴[22 Aug 25 23:47 UTC] No.44991354{3}[source]▶

>>44991332 #

I restarted FF and am now seeing something similar. Hard refreshing alternates between 2 and 3, and soft refreshes quickly get back to 3 most of the time

7. csinode ◴[23 Aug 25 02:26 UTC] No.44992493[source]▶

>>44991264 #

For me (FF nightly on Linux) a hard refresh has a roughly 50/50 chance of choosing HTTP3 or HTTP2.

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