On Tue, Jul 4, 2023 at 2:28 AM Helmut K. C. Tessarek
<tessarek@xxxxxxxxxxx> wrote:
>
> The documentation states:
>
> Proxying both HTTP and websockets at the same time, where the websockets URL's
> are not websocket-only or not known in advance can be done by using the
> RewriteRule directive to configure the websockets proxying:
>
> ProxyPass / http://example.com:9080/
> RewriteEngine on
> RewriteCond %{HTTP:Upgrade} websocket [NC]
> RewriteCond %{HTTP:Connection} upgrade [NC]
> RewriteRule ^/?(.*) "ws://example.com:9080/$1" [P,L]
>
> However, I was wondering, whether the following is an equivalent directive
> (just in a single line ;-)):
>
> ProxyPass / http://example.com:9080/ upgrade=websocket
>
> afaik the upgrade only takes place when it is requested by a header, unless
> upgrade=NONE or upgrade=ANY is set.
>
> Am I correct or are the not the same?
Yes, they should be the same. Upgrade only takes place when requested
AND accepted/switched by the backend server.
Regards;
Yann.
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