Inspiration taken from https://github.com/leaflet-extras/leaflet-providers/commit/dea786a3219f9cc824b8e96903a17f46ca9a5afc to use the ‘old’ relative url protocols and to ‘upgrade’ them at js runtime.
Copy/paste provider information into
var providers = L.TileLayer.Provider.providers; JSON.stringify(providers, null, " ");
./data-raw/providerNames.Rwas re-ran to update to the latest providers
Some providers had their protocols turned into ‘//’.
- This allows browsers to pick the protocol
- To stop files from the protocols staying as files, a ducktape patch was applied to