jupyterlab (version 4.0.8 ) can't treat markdown properly

[vivisol]

Description

jupyterlab (version 4.0.8 ) can't treat markdown properly.
here is the bug:
jupyterlab version is ：

browser version：

markdown is as follows:

but render result is :

Reproduce

1. Go to '...'
2. Click on '...'
3. Scroll down to '...'
4. See error '...'

Expected behavior

Context

• Operating System and version: win11 for home 22621.2428
• Browser and version: Google Chrome Version 119.0.6045.124 (Official Build) (64-bit)
• JupyterLab version: 4.0.8

Troubleshoot Output

Paste the output from running `jupyter troubleshoot` from the command line here.
You may want to sanitize the paths in the output.

Command Line Output

Paste the output from your command line running `jupyter lab` here, use `--debug` if possible.

Browser Output

Paste the output from your browser Javascript console here, if applicable.

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[krassowski]

Can you paste the full markdown text to make it easy to reproduce?

[vivisol]

Can you paste the full markdown text to make it easy to reproduce?

Sure, something like this :

File D:\ProgramData\miniconda3\envs\pyautogen\lib\site-packages\requests\models.py:975, in Response.json(self, **kwargs)
    971     return complexjson.loads(self.text, **kwargs)
    972 except JSONDecodeError as e:
    973     # Catch JSON-related errors and raise as requests.JSONDecodeError
    974     # This aliases json.JSONDecodeError and simplejson.JSONDecodeError
--> 975     raise RequestsJSONDecodeError(e.msg, e.doc, e.pos)

JSONDecodeError: Expecting value: line 1 column 1 (char 0)

[RRosio]

Thank you for providing the markdown @vivisol! Can you paste the entire content of the cell, including the text at the top (it looks like some text is missing from the top of the markdown cell, in your last post)? Does this error with the markdown also happen when the cell only contains the triple backtick code section, not any additional text?

[magitz]

I am having a similar issue in 4.0.6. It is most noticeable with the quoted text syntax ">".

Here's an example Markdown cell. This is the only cell in the notebook:

This is rendered as:

• Characters that are not there are added (the "a." at the end).
• Some lines that should be part of the quoted text block are not ("Maecenas maximus...")
• The issues are not consistent or always there, unfortunately.

Here's another example:

Rendered as:

In this case, only the "a." at the end is there.

I tried pasting text into a text editor to look for special characters and could not find anything.

From my testing, it seems like this only impacts Markdown edited on Jupyter 4+. When the notebook is opened in Jupyter 3.6.6, the actual Markdown corresponds to what 4+ displayed--ie. the Markdown is broken in the render process and changed to the incorrect text. But viewing it in 4+ looks correct.

[krassowski]

@magitz do you use Windows? If so, I have a strong suspicion that is different and it is down to line endings not being normalized on paste in Chrome. But this is just guessing without knowing your OS/browser and having a notebook to test it.

[magitz]

Ah...I do use Windows and Chrome...Is that a different issue? Any suggested work around (other than different browser/OS). I'll test in Edge/Firefox in a sec.

[magitz]

It does seem to work better in Firefox.

[krassowski]

This is tracked in #14752. I think we can close this as a duplicate of the other.

[JasonWeill]

Closing as a duplicate of #14752 — thanks @krassowski for finding the original issue!