Those tests started failing lately (on Testbot and locally here). That fails both on Windows and Wine (in the end a bit differently, something goes wrong in the end of our redirect handling and that fails on Wine but succeeds on Windows, but that is unrelated). That is because ws.ifelse.io stopped accepting plain http connections and returns internal redirect status to https. I looked at using echo.websocket.org but it behaves the same. It is probably going to be not so easy to find a reliable server which still supports http, so I am suggesting to just drop those tests without TLS, nothing in the websocket behaviour we are testing depends on secure / plain connection type anyway. -- https://gitlab.winehq.org/wine/wine/-/merge_requests/9367#note_120815