Webrtc: PATCH method not allowed

[CherifiImene]

Question

I deployed my mediamtx server in k8s to serve webrtc stream. Without nginx it works fine, but once I add nginx I get 405 method not allowed, in the request (Method Patch) /live/1/whep/session_id

Bellow is my nginx config.

location /stream/live {
            add_header 'Access-Control-Allow-Origin' '*' always;
            add_header 'Access-Control-Allow-Credentials' 'true' always;
            add_header 'Access-Control-Allow-Methods' 'GET, POST, PUT, DELETE, OPTIONS, PATCH' always;
            add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type' always;

            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header X-Forwarded-Proto $scheme;
            proxy_set_header Upgrade $http_upgrade;

            rewrite /stream/live/(.*) /live/$1  break;
            proxy_pass http://mediamtx-service.default.svc.cluster.local:8887;
            proxy_redirect off;
        }

I've been stuck with this for more than 2 days, your help would be much appreciated.

[CherifiImene]

I'm posting this answer in case someone encounters the same issue in the future.
The problem was that signaling started from /stream/live, while the route in MediaMTX was /live. As a result, the later PATCH request was sent to /live/SESSION_ID, which didn’t exist in my Nginx configuration.

To fix this, you have two options:

• Remove the extra /stream prefix in the Nginx config.
• Publish the stream to /stream/live in MediaMTX.

I hope this helps!