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jupyterhub / the-littlest-jupyterhub

Simple JupyterHub distribution for 1-100 users on a single server
https://tljh.jupyter.org
BSD 3-Clause "New" or "Revised" License
1.04k stars 341 forks source link

adivce for websocket closed issue #690

Closed jihobak closed 3 years ago

jihobak commented 3 years ago

Bug description

There's no problem when I logged through local network(in university) but here is a problem. When I tried to access to hub at outside of local network(university), I got below error log. So, hub showed me a message such as "Error Starting Kernel, Invalid response: 400 Bad Request". websocket closed Also, I could find the a message like 'Websocket connection to ~~~~/user/user_name/terminals/websocket/1 failed' in the browser console.

However, I made and run independent jupyterlab sever through docker(not using tljh). I can access to server unlike tljh like above!

I thought this issue is related to firewall(proxy) setting of local network(university) as the websocket error message showed, but I can access to the server even at outside of network without tljh.

Could you give me the any guidance to solve the problem? Which part do you think have the problem ?

Thanks

welcome[bot] commented 3 years ago

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jihobak commented 3 years ago

This was related to proxy issue. Thanks!

consideRatio commented 3 years ago

@jihobak thanks for following up!