Language switching redirects to home page instead of the current page's translation

[Hyrla]

Problem

Since migrating to Sphinx RTD Theme 3.0, switching language redirects the user to the doc's home page instead of displaying the current page's translation. This used to work properly on 2.0.

Reproducible Project

Example page: https://esieabot.readthedocs.io/fr/latest/assemble/esieabot/esieabot-2024/esieabot-2024.html (the issue is the same with every page)

Expected Results

I am expecting to display current page's translation when switching language, like it used to be. Is there a new setting to mitigate that?

Environment Info

• Python Version: 3.12
• Sphinx Version: 8.3.1
• RTD Theme Version: latest (3.0.1)

[humitos]

Isn't this issue a duplicated of #1621?

[Hyrla]

Isn't this issue a duplicated of #1621?

I am sorry if my issue is not clear. It is a different issue here. Previously, if I switched language while I am reading a page in French, I was redirected to the same page in English (it's the same URL, but /fr/ was replaced by /en/). With the last version, switching language redirects to the home page instead of the current page translated in another language.

[humitos]

Gotcha, thanks for the extra details.

It seems we will need to replicate the chunk of code we added to addons that reads the readthedocs-resolver-filename META tag and appends it to the link:

https://github.com/readthedocs/addons/blob/0f025e3bf604f96506aebf2af120b4c20d02fde8/src/utils.js#L211-L241

[Hyrla]

Thank you. Do you need any more details?