Preview not working on forks

[juanfra]

Description

While testing PRs in Twenty Twenty-Five, I've noticed that the link of this action works when the branch is part of the "parent" repository. If a contributor forks the repository, and then creates a PR with their own branch it's not working. Apparently, the theme can't be adequately downloaded in this particular scenario as you can see in the following screencast.

Screen.Recording.2024-10-24.at.08.27.38.mov

[bgrgicak]

This is caused by the repo parameter. It points to the parent repository while it should point to the forked repository.

The repo value comes from here.

I'm not sure what the best way to resolve this is. We need to find a way to point the repository back to the fork.

[bgrgicak]

@juanfra do you have any suggestions how we could resolve this?

[juanfra]

@bgrgicak, I didn't have time to look at the code. I can try to save some time towards the end of this week, as I have to prioritize things related to Twenty Twenty-Five first.

[bgrgicak]

That would be great, thank you!

[juanfra]

@bgrgicak I put something together that could fix it here.