I will update the title and confirm the steps in the updated summary by EOD Monday 2024-07-29.
- 🇺🇸United States smustgrave
Still appears to need upgrade path. Also any fixes please put into an MR.
- 🇬🇧United Kingdom catch
Also if we were to add this, I think it should be its own filter doing this generally for all site-relative links, not within the file reference filter.
For example https://www.drupal.org/project/rel_to_abs → provides this in contrib.
- 🇬🇧United Kingdom catch
The issue summary doesn't explain the problem with relative URLs, why is this a problem?
Additionally, Drupal sites can be run from multiple domains, using domain module and similar. Relative URLs allow this to work, I don't think we're able to cache text formats by arbitrary cache contexts so it would probably break that.