Prevent infinite loop on failing errorTileUrls (fixes #5176) (#5177)
Prevent infinite loop on failing errorTileUrls (fixes #5176) (#5177)


rlugojr/Leaflet,codeator/Leaflet,codeator/Leaflet,davojta/Leaflet,AP-whitehat/Leaflet,Trufi/Leaflet,Trufi/Leaflet,scaddenp/Leaflet,frogcat/Leaflet,msiadak/Leaflet,iZucken/Leaflet,scaddenp/Leaflet,iZucken/Leaflet,Ubisense/Leaflet,davojta/Leaflet,AP-whitehat/Leaflet,rlugojr/Leaflet,stefanocudini/Leaflet,iZucken/Leaflet,frogcat/Leaflet,rlugojr/Leaflet,codeator/Leaflet,jasonoverland/Leaflet,AP-whitehat/Leaflet,geoloep/Leaflet,davojta/Leaflet,Leaflet/Leaflet,CapeSepias/Leaflet,Leaflet/Leaflet,Trufi/Leaflet,geoloep/Leaflet,jasonoverland/Leaflet,scaddenp/Leaflet,frogcat/Leaflet,msiadak/Leaflet,Ubisense/Leaflet,geoloep/Leaflet,Leaflet/Leaflet,CapeSepias/Leaflet,jasonoverland/Leaflet,stefanocudini/Leaflet,CapeSepias/Leaflet,msiadak/Leaflet,Ubisense/Leaflet,stefanocudini/Leaflet