leaflet - OSM: Open Topo Map doesn't work signed .apk -


this exceptionally strange issue found using open topo map in android app. android app signed open topo map stops loading tiles from:

https://a.tile.opentopomap.org/{z}/{x}/{y}.png

all other tilelayers work fine (openstreet, mapbox).

code:

let defaultcoordinates = { "lat": 52.370216, "lng": 4.895168 }; l.map('drawmap', {       attributioncontrol: true,       renderer: l.svg(),       minzoom: 2,       maxzoom: 20,       zoomcontrol: true,       layers: [l.tilelayer("https://a.tile.opentopomap.org/{z}/{x}/{y}.png"]       }).setview([defaultcoordinates.lat, defaultcoordinates.lng], 13);


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