Nbconvert jumps to the wrong link in collaboration mode

[SaturnTsen]

Describe the bug
Nbconvert jumps to the wrong link in collaboration mode.

To Reproduce

1. Install and activate jupyter-collaboration
2. Open any .ipynb file
3. File - Save and Export Notebook As - LaTeX (or other options)
4. The server returns 404, because the the browser goes to /nbconvert/latex/RTC%3AFILENAME.ipynb?download=true instead of /nbconvert/latex/FILENAME.ipynb?download=true

Expected behavior
the browser goes to /nbconvert/latex/FILENAME.ipynb?download=true

Screenshots

Desktop (please complete the following information):

• OS: Windows 11
• Browser: Edge (Chromium)
• Server Version:
  CentOS : LSB Version core-4.1-amd64:core-4.1-noarch
  Conda Version: 23.3.1
  Python : 3.10.9
  IPython : 8.13.1
  ipykernel : 6.22.0
  ipywidgets : not installed
  jupyter_client : 8.2.0
  jupyter_core : 5.3.0
  jupyter_server : 2.5.0
  jupyterlab : 4.0.0rc0
  nbclient : 0.7.4
  nbconvert : 7.3.1
  nbformat : 5.8.0
  notebook : 7.0.0b1
  qtconsole : not installed
  traitlets : 5.9.0

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[hbcarlos]

Thanks @minger233.

We will need to fix this in JupyterLab.

[tuncbkose]

What would be the right way to fix this? I can imagine stripping the RTC: part somewhere (here?).

But I don't know if that fixes the general problem of a different notebook path being reported/passed around just because collaboration is active, for code that expects path to be just the file path.

[ykazakov]

There is a similar problem in nbgrader caused by the RTC: part in the path: jupyter/nbgrader#1836

[tylerpotts]

Also having this issue with png image files in the imageviewer using jupyterlab==4.0.7 and jupyter-collaboration==1.2.0

When looking at the path of the image I'm trying to open it's http://localhost:8888/lab/workspaces/auto-s/tree/RTC%3Aimage.png. If I remove the RTC%3A it works as expected.

[milandeepbassi]

jupyter/nbgrader#1836 For this issue is it caused by Jupyter colab or is it an nbgrader issue?