Jupyter-ui fails to connect to Jupyter server with version >=2.11.1 due to hash checking restrictions

[littlekeixi]

Description

Jupyter-ui will not able to connect to jupyter server if jupyter server are installed with version >=2.11.1

Reproduce

Install jupyter server using pip with version >=2.11.1
for example: pip install jupyter_server==2.11.1

Reason

Starting from Jupyter server 2.11.1, the author introduced hash checking that only allows values of 1 and 0.

Expected behavior

Front-end: expect file load error

Server: