External Feeds:
CORs Enabled:

Layer Options:
GeoXmlLayer - Cross Domain Sample This sample shows how to use a proxy service to load geospatial XML files that are hosted on other domains which may not have CORs enabled.
Note: Not all file and mime types are enabled in all servers. If using .NET, it is recommended to add the following to the web.config file:
<system.webServer>
<staticContent>
<remove fileExtension=".json" />
<mimeMap fileExtension=".json" mimeType="application/json" />
<remove fileExtension=".geojson" />
<mimeMap fileExtension=".geojson" mimeType="application/json" />
<remove fileExtension=".gpx" />
<mimeMap fileExtension=".gpx" mimeType="application/xml" />
<remove fileExtension=".georss" />
<mimeMap fileExtension=".georss" mimeType="application/xml" />
<remove fileExtension=".kml" />
<mimeMap fileExtension=".kml" mimeType="application/vnd.google-earth.kml+xml" />
<remove fileExtension=".kmz" />
<mimeMap fileExtension=".kmz" mimeType="application/vnd.google-earth.kmz" />
</staticContent>