ERR_INVALID_HTTP_RESPONSE when open jupyter in the browser

JupyterLab
,
1

I installed Jupyter in a virtual environment on the server using:

pip install jupyterlab

And configured it as follows:

c.LabApp.ip = ''
c.LabApp.password = u'sha1:*******'  # not shown here
c.LabApp.open_browser = False
c.LabApp.port = 8890
c.LabApp.allow_remote_access = True

Then I established an SSH tunnel to access it locally via port 8890:

ssh -L 8890:localhost:8890 your_username@your_server_ip

However, when I enter http://localhost:8890/lab in the browser, it shows “invalid HTTP response.” How can I fix the issue? Thanks for your help!

2

somehow it works, i don’t know why. But jupyter lab now works well on my browser following the same proedure.