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WebSocket handshake fails in Chrome due to missing Sec-WebSocket-Protocol field #57

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triska opened this issue Sep 12, 2016 · 0 comments

Member

triska commented Sep 12, 2016

Steps to reproduce:

Start the echo server that is shown in the documentation of library(http/websocket), using:
```
?- http_server(http_dispatch, [port(8090)]).
```
Use the following JavaScript line to establish a WebSocket connection in Chrome:
```
var s = new WebSocket("ws://localhost:8090/ws", "protocolOne");
```

Chrome refuses the connection with:

Error during WebSocket handshake: Sent non-empty 'Sec-WebSocket-Protocol' header but no response was received

If possible, please add this header field to the response. Thank you!

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