OSM blocked OpsLog and every user's map filled with "Access blocked / 403"
tiles at once. Their policy is explicit: an application must identify itself
with a proper, unique User-Agent on every tile request. A program that draws
its maps inside a web view cannot do that — the browser sets that header and
Leaflet fetches tiles as plain <img> loads — so this is not something to tune,
it is a service we are not entitled to use.
Two layers still pointed there: the Street basemap and the locator map. Street
moves to Esri World Street Map, the locator map to Carto, both key-free and
both under terms that cover a redistributed application. OpenStreetMap keeps
its credit: Carto's tiles are built from OSM data.
The locator map also gains the tile restraint the world map already had —
updateWhenIdle, no fetching mid-zoom, one ring of buffer. Fetching as fast as
the pointer moves is another item on OSM's block list, and the replacement
providers are under no more obligation to tolerate it than OSM was.
The basemap preference key is untouched, so an operator who had picked "Street"
still gets a street map, from the new source.
rouggy
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