Hi,
I'm currently encountering issues with Revision pages generated by the Diff modules being exposed to Google and outranking the parent page for various search terms.
This could easily be resolved by adding a canonical rel tag on all revision pages that links back to the parent page. This behaviour is precisely how Mediawiki currently handles revision pages.
I'm also using the Metatags module to generate canonical tags and there is no way that I can see to customise them specifically on Revision pages to rel canonical back to the parent page.
An example of this behaviour can be seen here:
https://oldworldwiki.com/karl-franz
https://oldworldwiki.com/node/7091/revisions/48406/view
Happy to provide more details or information if needed.
Thanks!
Fixed
3.3
Code
Not all content is available!
It's likely this issue predates Contrib.social: some issue and comment data are missing.
Given the proximity of EOL for Drupal 7, marking this as won't fix. The likely final Drupal 7 release of diff has landed in https://www.drupal.org/project/diff/releases/7.x-3.5 → . If this is something still applicable to a more modern version of the module, feel free to re-open and post additional notes.