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Code disappearing when editor opens #11
Description
When I open a file for the first time, I sometimes see that lines of code have been randomly erased. CTRL-Z does not revert this, so it is not something caused by any user interaction with the program. The line numbers show that something used to be there, and the erasures don't line up neatly with lines--for example, the end of line 7, all of lines 8-19, and the beginning of line 20 were deleted in one program.
This has happened enough times that it seems to be a systemic error. This never happened to me with the Glowscript editor. It is very frustrating, as there is no backup (as far as I know), so I have no way to restore the programs affected.
Example program where this has happened:
https://flaskdstorehost-dhppn6xgeq-uc.a.run.app/#/user/HG_NY/folder/FileWork/program/AddressBook/edit
I don't suppose you have any version history on your end to check when the change happened?
Activity
sspickle commentedon Apr 3, 2025
Wow. Sorry about this. I have not experienced that. Maybe make copies of code before you test with the new editor.
I'll try to look for a source of this problem.
sspickle commentedon Apr 3, 2025
Can you share details of Browser, OS, etc.?
Waldorf-Techie commentedon Apr 3, 2025
sspickle commentedon Apr 3, 2025
If you see any way to prepare a document to make the behavior reproducible, that would be helpful.
sspickle commentedon Apr 7, 2025
Another useful bit of information would be any output that might appear in the javascript console.
sspickle commentedon Jun 15, 2026
I haven't been able to reproduce this locally, and I don't yet know whether this is actual saved source mutation or a Monaco/editor rendering/cache issue. Leaving it open for now, but please provide more details if it happens again:\n\n- Browser version and OS version\n- Exact steps leading up to the disappearing code\n- Whether refreshing the page or opening the same URL in a new tab restores the code\n- Whether the API/downloaded program source also has missing text, or only the editor display\n- Any JavaScript console output\n- Whether it happens with Code hints disabled and/or in a private browser window/fresh profile\n\nIf possible, immediately download/copy the affected program source before making further edits so we can compare what is actually stored.