AO3 hidden search operators

Apparently there are a whole lot of text-format search options on AO3 that don't need JavaScript and can be added anywhere you get a search box: https://archiveofourown.org/admin_posts/10851

A quick test demonstrates that they still work...

Search Results

You searched for: restricted:true Tags: Le Fantôme de l'Opéra | Phantom of the Opera & Related Fandoms sort by: best match descending

Also works when entered into the "Search within results" field at the bottom of a specific author's works listing (including one's own!)