The FishMag catalogue

Filters combine — picking a brand keeps the category you already chose, and every combination is a plain bookmarkable URL you can edit by hand (?brand=Fox&category=Sea). With JavaScript off each chip still filters, one facet at a time. No free-text search yet: the engine's query filter matches a field exactly (C58), and combining is script-side until C60.

Colour, Length and Breaking strain arrived with the catalogue work and are still rough. Two things to know. These chips are the most common values, not the whole vocabulary - Colour alone has 5,003 distinct values and the top twenty cover about a quarter of them, so the long tail is reachable only by typing an exact value in the address bar. And a product can hold many values: these columns and filters use the PRIMARY one, with a +N more count showing how many others there are. A lure sold in 78 colours is real data, not a fault. Filtering on any-of-many needs the engine to match inside a list, which it cannot do yet (C61) - the commerce API already can.