Found by verifying the GOAL rather than the checklist. The rollout table
only ever listed plugins with a search bar, so a sweep of all 16 isMap
leaves was run under both providers: 12 of 16 swapped, and this leaf made
18 requests to api.mapbox.com under ?provider=maplibre — identical to its
mapbox run, because it builds its map RAW (new gl.Map on window.mapboxgl)
and never reaches the resolution useMapInstance does for everyone else.
Same shape and same fix as my-upg-100-list, minus the token gate this file
never had: the engine comes from the shared ensureEngineScript/engineGlobal
rather than a hardcoded global, and the two hardcoded mapbox:// style URLs
are paired through the registry — 'ink' (dark-v11 / OpenFreeMap dark) and
'paper' (light-v11 / positron) — so both engines show one intent. The
engine loader is imported, never re-declared; a second ENGINES table in a
profile is how two copies of one fact drift apart.
No geocoder is mounted here, so the deferred-search-bar rule does not apply
and nothing about the search behaviour changed.
MEASURED on the built tree:
mapbox canvas=1 18 mapbox requests (unchanged)
maplibre canvas=1 4 mapbox requests maplibregl loaded
Screenshot read: positron basemap, connectivity choropleth, legend and
controls all intact.
Also recorded from the sweep: poster-wall and regions-list draw NO canvas on
either engine — they are the already-filed isMap misclassification, not
gaps, and must not be "fixed".
7/7 pre, 18/18 post.
34cb921b96