Fetches + parses a GeoJSON document by URL. No tiling — GeoJSON is a single document, so this is a plain cached fetch (not the tileset HttpDataSource machinery); throws on a non-OK response or HTML (a misrouted error page) instead of a JSON body.
fetch
Optional
Fetches + parses a GeoJSON document by URL. No tiling — GeoJSON is a single document, so this is a plain cached
fetch(not the tileset HttpDataSource machinery); throws on a non-OK response or HTML (a misrouted error page) instead of a JSON body.