1. What version of Caddy are you using (caddy -version)?

Caddy 0.11.0

2. What are you trying to do?

Make a http2 proxy use caddy, I hope it can support WebSocket.

I use Chrome + SwitchyOmega for client.

PAC file:

function FindProxyForURL(url, host) {
  return "HTTPS example.com:443";
}

3. What is your entire Caddyfile?

example.com:443 {
    tls /***/cert.pem /***/privkey.pem
    forwardproxy {
        basicauth user pass
        hide_ip
        hide_via
        response_timeout 10
        dial_timeout 10
    }
}

4. How did you run Caddy (give the full command and describe the execution environment)?

caddy --conf Caddyfile

5. Please paste any relevant HTTP request(s) here.

Please open this js code example:

http://jsbin.com/muqamiqimu/2/edit?js,console

Click run, modify the first line from wss://echo.websocket.org to ws://echo.websocket.org, and run again.

6. What did you expect to see?

Both protocols should be supported (ws and wss).

7. What did you see instead (give full error messages and/or log)?

Only wss supported, ws cant work, which works normally without proxy.

8. How can someone who is starting from scratch reproduce the bug as minimally as possible?

• Install caddy with forwardproxy.
• Copy Caddyfile.
• Run caddy as a http2 proxy server.
• Configure Chrome to use the http2 proxy.
• Open the URL I support in above and test.