Status Code: 426 No Sec-WebSocket-Protocols requested supported

[lucaele]

Hi all, using "Push" example i have Status Code error 426. I don't know how set one protocol on response header. Any idea? Thanks

Request Header GET ws://:/ocpp/BTC1 HTTP/1.1 Host: : Connection: Upgrade Pragma: no-cache Cache-Control: no-cache Upgrade: websocket Origin: file:// Sec-WebSocket-Version: 13 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/ Accept-Encoding: gzip, deflate Accept-Language: it-IT,it;q=0.9,en;q=0.8 Sec-WebSocket-Key: KET8SE4BEUe9VF+JnuctiA== Sec-WebSocket-Extensions: permessage-deflate; client_max_window_bits Sec-WebSocket-Protocol: ocpp1.6, ocpp1.5

Response Header HTTP/1.1 426 No Sec-WebSocket-Protocols requested supported Connection: Upgrade Upgrade: websocket Sec-WebSocket-Version: 13 Sec-WebSocket-Protocol: 0 X-Powered-By: Ratchet/0.4.1

[lucaele]

Fix it!

1) Add this line to Pusher.php: use Ratchet\WebSocket\WsServerInterface;

2) upgrade line definition Class like this: class Pusher implements WampServerInterface, WsServerInterface ....

3) Add this inside of Pusher Class: public function getSubProtocols() { return ['ocpp1.6']; }

[gareth41]

Thanks, this helped me also with the same issue. Good luck with the development of your EV charger central server, that's what the OCPP protocol is used for.

[Wyyllys]

Hello, thanks for your work. I am trying to use Ratchet for the first time. I has followed the "Push integration" tuto on the ratchet website. And I have the same issue, I apply the solution from lucaele, but Firefox return the error code 426, and it doesn't establish the connection with the websocket. While, the header "Sec-WebSocket-Protocol" has this value: "ocpp1.6, wamp". Could you tell me what is going wrong ?

[cboden]

@Wyyllys This code means the server is expecting one of two sub-protocols but neither were provided. Where is your client connecting code?

[Wyyllys]

Hello, thanks for your reply. The client is a firefox browser, here is the js code for establish the connection: var conn = new WebSocket('ws://192.168.1.156:8080'); conn.onopen = function(e) { console.log("Connection established!"); }; Do I need to specify the protocol for the websocket instance?

[cboden]

Do I need to specify the protocol for the websocket instance?

Yes, since you have configured your server to require either "ocpp1.6" or "wamp". See the browser WebSocket API

[Wyyllys]

Yes, it is working, Thanks a lot, now I can move on ;-) !