Do not allow OGC layers from servers with no CORS/JSONP (?)

[gioman]

Adding a OGC layer, a WMS from example, for a server with no CORS/JSONP will make WAB send a message like

"There was an error loading tiles."

then on webapp preview the layer with load to fail with

There was an error loading tiles.

wouldn't be better to "ban" altogether the OGC layers that are from services/servers that are not supported?

[bartvde]

Probably yes, I agree

Alternatively we could not set crossOrigin: 'anonymous' in those cases

[gioman]

@bartvde whatever can result in less confusion for users. I personally think strange (as user) I cannot add a whataver WMS Mapserver layer, but is that is not possible then block them.

[SrNetoChan]

Meanwhile, I will document this limitation in the troubleshooting section.