I'm told Opera doesn't support bookmarklets. I made one to collapse all comments in a BitBucket PR page (just find each comment and nest it inside a <details>

I'm told Opera doesn't support bookmarklets. I made one to collapse all comments in a BitBucket PR page (just find each comment and nest it inside a <details> tag, with a <summary> containing the first line of the comment). It's widely used in PRs that deal with Atlantis/Terraform, because Atlantis leaves huge comments on PRs.