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> I am afraid that businesses that will host HTTP/3 will be less secure in terms of availavility. Presumably most HTTP/3 implementations will gracefully fall b
by profmonocle 7y ago
> I am afraid that businesses that will host HTTP/3 will be less secure in terms of availavility.
Presumably most HTTP/3 implementations will gracefully fall back to HTTP/2 (or 1.1) if UDP is filtered. Chrome's existing QUIC implementation already does this.
Every Google property has had QUIC enabled for quite a while now (at least 4-5 years), so if UDP blocking would cause availability issues, affected businesses would've noticed by now.
- wahern 7y agoIn 2017 Google reported that "4.4% of clients are unable to use QUIC". See sec. 7.2 of https://static.googleusercontent.com/media/research.google.com/en//pubs/archive/46403.pdf https://static.googleusercontent.com/media/research.google.c....
- profmonocle 7y agoSure, but that doesn't mean those clients are unable to connect to QUIC-enabled domains. Chrome detects that the UDP packets are being lost, disables QUIC, and falls back to HTTP/2.