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Paho mqtt connection [message #1786592]

Tue, 08 May 2018 05:58

Srinivas Pokala

Messages: 7
Registered: May 2016

Junior Member

Hi,
We are getting below error in some browsers(chrome or mozilla) when we connect mqtt using web sockets. When we clear browser history then connected.
Error:
WebSocket connection to 'wss://host:port/mqtt' failed: Connection closed before receiving a handshake response Paho.MQTT.ClientImpl._doConnect @ mqttws31.js:979

My connection:

var client = new Paho.MQTT.Client("host", Number(port), "myClientId" + new Date().getTime());
client.connect({userName:username,password:password,onSuccess:onConnect,onFailure:doFail,useSSL:true,cleanSession:false});

So please look into this.
Thanks

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Re: Paho mqtt connection [message #1786597 is a reply to message #1786592]

Tue, 08 May 2018 07:49

James Sutton

Messages: 69
Registered: July 2015

Member

Hi Srinivas,

Sorry to hear that you're having a problem, could you provide some more info for us please? It would be good to know what version of Chrome and Firefox you are seeing this issue with, and also, could you look at the network tab in the developer console to see what response code the secure websocket connection receives from the sever when this issue occurs?

Thanks,

James

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Re: Paho mqtt connection [message #1786603 is a reply to message #1786597]

Tue, 08 May 2018 09:07

Srinivas Pokala

Messages: 7
Registered: May 2016

Junior Member

Hi James,

Please check screen shots of chrome versions and response code of different systems, one system got error and another one connected succesfully.

Mosquitto configuration:

# Plain WebSockets configuration
listener port
protocol websockets

# WebSockets over TLS/SSL
listener port
protocol websockets
cafile ca.crt
certfile cer.crt
keyfile key

Attachment: mqtt_connet.png
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Attachment: mqtt_disconnect.png
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Attachment: mqtt_disconnect1.png
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