Downloading the page source when clicking on a link instead of opening it in the browser

[epicmet]

System Details

• OS: Linux archlinux 6.5.7-arch1-1
• Thorium Version: 117.0.5938.157 (Official Build) (64-bit)

Problem
When Thorium is my system's default browser and I click on a hyperlink (in a text editor for example) the source page of the corresponding web page starts to download and then Thorium opens that file in a raw form.

Screenshots

Additional Notes
I don't have much experience in c++ but I would be happy to help on this issue and contribute to this project if possible.

[gz83]

Does Chrome/Chromium also have this issue?

[epicmet]

Nope, Chromium and Chrome work fine.

[gz83]

I have the impression that Thorium has not modified the code related to this. If it performs normally on Chromium/Chrome, it may be that the new version has fixed this problem, but it is not yet completely certain.

[epicmet]

Right, is there any more information I can provide?
Also worth mentioning the 116 version on my Mac machine works just fine. I have to test different versions on my Linux machine.

[gz83]

You can use the dichotomy method to troubleshoot which version the problem occurs, or wait for Thorium to be updated to a version that does not have this problem (a version consistent with Chrome/Chromium that does not have this problem)