Missing http header

[west-side-solutions]

Hi, The fastcgi_param "HTTP_HOST" is not transmitted by default in http3 but when i fallback to http2, is back. is it normal ?

[victor-sm]

This seems to be a nginx bug, not something wrong with this image. See:

• The value of variable $http_host will not fallback to the value of :authority pseudo-header when the client not providing the request header Host

• QUIC: failed to get $http_host variable for http3 request

• The value of variable $http_host will not fallback to the value of :authority pseudo-header when the client not providing the request header Host

Workaround/Solution:

Replace (or add): proxy_set_header Host $http_host; with proxy_set_header Host $host;

or

Replace (or add): fastcgi_param HTTP_HOST $http_host; with fastcgi_param HTTP_HOST $host;