[Bug]: HTML Drag and Drop API not returning event.dataTransfer.files array consistently on all Electron versions

[Ob1To]

Preflight Checklist

• I have read the Contributing Guidelines for this project.
• I agree to follow the Code of Conduct that this project adheres to.
• I have searched the issue tracker for a bug report that matches the one I want to file, without success.

Electron Version

29.1.5

What operating system are you using?

Ubuntu

Operating System Version

Ubuntu 23.10

What arch are you using?

x64

Last Known Working Electron version

No response

Expected Behavior

Consistently return the dropped files - event.dataTransfer.files array so that I can get the file.path property from it.

Actual Behavior

My original project is on Electron 3.1.11 and I'm developing on older Ubuntu 16.04 where I'm testing my code and it's working 100 out of 100 times. On another newer Mint 21.2 it's also working. It is my QA who found that on some new distributions, only some of the times, the drops return the array list populated with information.
Most of the times event.dataTransfer.files array is returned empty. It's like some race condition... only on some Linux distributions.
I thought that it maybe is related to the old Electron version but I created a blank project with the newest Electron version and it is the same behavior
Please check the screenshot where I'm printing in the console the event.dataTransfer.files[0].path property:

Here is also a video of the problem:

reproducing.drop.down.not.working.mp4

Testcase Gist URL

https://gist.github.com/Ob1To/8adae451dad15605443eda03061601fd

Additional Information

No response

[dsanders11]

From your repro video it looks like the files that aren't working are executable files, while those that do are text files. Is that just a coincidence in the video, or is that consistent?

[Ob1To]

From your repro video it looks like the files that aren't working are executable files, while those that do are text files. Is that just a coincidence in the video, or is that consistent?

Unfortunately, it is a coincidence. I have never found any file type correlation. The same behavior is observed with folders also. Randomly receiving the event.dataTransfer.files array..