"url=" URL parameter support?

[AlexPajusi]

In ArcGIS Online it is possible to pass a layer URL to the webmap via a "url=" parameter. In Web App Builder, this parameter is seemingly unsupported at present.

How can I define layers from an external URL in my Web App Builder app?

Is support for this parameter forthcoming?

[RobertScheitlin__GISP]

Alex,

   There is no support for what you are attempting. If you need to add a layer to your app then look at the Add Data widget.