Prosemirror - unknown WYSIWYG error opening specific Dokuwike page

[doreps]

Issue Description

For my Windows 11 Dokuwiki-on-a-stick WYSIWYG editor using Prosemirror, opening a specific page results in an error to open the WYSIWYG editor with a transfer to the syntax editor failing for an unknown reason. Opening another page shows no errors. Video of this is at
https://drive.google.com/file/d/1tYNh2VfTj9AQElRkatMXkVJ0M0pRfFzQ/view?usp=sharing.

I do have a Dokuwiki conf/userstyles.css, but removing that does not change the issue. Not being a programmer, I have not made any changes to Dokuwiki or Prosemirror that could cause the error. Perhaps there is syntax on the specific page causing the error. I have attached the file (Prosemirror - Dokuwiki page txt causing unknown error.txt) for that full page. Also attached is Dokuwiki’ error log (Prosemirror - Dokuwiki error log.log).

I would expect this “error” page to function as I have shown in the video of the 2nd page opening with no errors and both the WYSIWYG and syntax editors being available. Hopefully this issue is correctable.

Prosemirror - Dokuwiki page txt causing unknown error.txt

Prosemirror - Dokuwiki error log.log

[whateverusernameisnottaken]

I believe I'm experiencing the same thing, also only on one specific page. I don't have the skills either to figure out what's causing it, but I suspect certain formatting.

[annda]

@doreps your wiki page contains empty headings (===== =====). At the moment Prosemirror cannot handle this invalid syntax.

@whateverusernameisnottaken check your error logs to see if you have the same problem. Otherwise please post the content of your problematic wiki page and the error log.

[whateverusernameisnottaken]

Thank you. Is there a way to search for that across the entire wiki, and not have to check each page individually? I lost track of which page was causing the problems, and I don't know how to search across more than one page at a time for formatting tags.

[doreps]

Thanks for the ===== find =====. I'll go back and take a look and try. Potentially very helpful. Thanks for taking the time.

…

On Fri, Aug 22, 2025 at 4:46 PM Anna Dabrowska ***@***.***> wrote: *annda* left a comment (cosmocode/dokuwiki-plugin-prosemirror#214) <#214 (comment)> @doreps <https://github.com/doreps> your wiki page contains empty headings (===== =====). At the moment Prosemirror cannot handle this invalid syntax. @whateverusernameisnottaken <https://github.com/whateverusernameisnottaken> check your error logs to see if you have the same problem. Otherwise please post the content of your problematic wiki page and the error log. — Reply to this email directly, view it on GitHub <#214 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AW4LCCJWU4VOLFAW6MKKMJL3O56S3AVCNFSM6AAAAACBHXR2QSVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTEMJVGYYDINRYGE> . You are receiving this because you were mentioned.Message ID: ***@***.***>