preprocess_file_link uses file_create_url function and tries to generate a link.
But file_create_url could return FALSE
.....
* @return string
* A string containing a URL that may be used to access the file.
* If the provided string already contains a preceding 'http', 'https', or
* '/', nothing is done and the same string is returned. If a stream wrapper
* could not be found to generate an external URL, then FALSE is returned.
....
in this case Url::fromUri will throw InvalidArgumentException
Closed: outdated
11.0 🔥
The change is currently missing an automated test that fails when run with the original code, and succeeds when the bug has been fixed.
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
I think we can safely close this one as outdated. file_create_url() was deprecated in drupal 9.3.0 and template_preprocess_file_link() now calls \Drupal\Core\File\FileUrlGeneratorInterface::generate() which returns a \Drupal\Core\Url object (not FALSE or NULL).