403 errors for vector basemaps (x-post from Esri Leaflet forum)

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08-13-2021 11:39 AM
DanielMauer
New Contributor II

Hello; I previously posted this in the Esri Leaflet forum, but hope it might get more attention here, as I imagine it applies more generally.

I have a web app which uses the DarkGray, DarkGrayLabels, ImageryClarity and ImageryLabels basemaps from ArcGIS Online; I render them to a Leaflet map using the Esri.Leaflet library. For unknown reasons, over the past few days, all but ImageryClarity have stopped working, and I'm getting 403 errors for every tile that Leaflet tries to load. For example:

602:1 GET https://server.arcgisonline.com/ArcGIS/rest/services/Reference/World_Boundaries_and_Places/MapServer... 403 (Forbidden)

If I try to load that tile in a plain browser window, I get a similar "Access Denied" error. All the tiles for ImageryClarity, however (e.g. http://wayback.maptiles.arcgis.com/arcgis/rest/services/world_imagery/mapserver/tile/6036/14/4764/95...) still load just fine. I'm assuming this is a vector-vs-raster issue but I don't really know that for sure.

Any idea what may be going wrong?

Thanks,
-Dan

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