File -> Embed -> HTML functionality produces the error "Error saving file"

[miracuruzrh]

Preflight Checklist

• [x ] I agree to follow the Code of Conduct that this project adheres to.
• [x ] I have searched the issue tracker for a feature request that matches the one I want to file, without success.

Describe the bug Functionality: File -> Embed -> HTML When the file is relatively big, a preview box opens with the information: "Too large, use download instead.". When I follow along and click the download button, the explorer windows opens, to sleect a location to save the file (default filename = embed.txt). When I click finally on the Save button, a error box appears with the information: "Error saving file". No further information is given.

To Reproduce Steps to reproduce the behavior:

1. Open Windows dekstop application draw.io (v24.1.0).
2. Click on 'File -> Embed -> HTML'
3. All options on default
4. Click on 'Create'
5. Click on 'Download' in the preview window
6. Pick a storage location. For example the Downloads or Desktop folder
7. Click on 'Save'
8. A Window opens with information: "Error saving file".

Expected behavior The file should be saved in the choosen location, without error message, or the info window could be enhanced, to clarify, where the issue is.

Screenshots Selected options:

Error message:

Desktop (please complete the following information):

• OS: [Windows 11 Professional]
• Application: draw.io Desktop version
• Application version: draw.io v24.1.0

Additional context When I try the same functionality within the Brave browser, then no error appears. It seems that the error is only related to the desktop version.

please let me know, if further information is required.

[davidjgraph]

Fix in 24.2.3.