What does "upgrade required" mean?
Hello! I am trying to make a websocket chat, and for some reason, when I run the program, it says "Upgrade Required" in the HTML window. Is there a solution to this?
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19wintersp (1121)
"Upgrade Required" is often shown when a request is made over HTTP which needs to be converted into a WebSocket connection ("upgrading").
it means you are using an outdated version, and you need an upgrade for it, to use it properly.