SSO Pass-through is not working in Microsoft Edge Browser.
To enable Receiver for Web to use Citrix Receiver Launcher for Edge, you have to edit the web.config file.
Note: Editing web.config incorrectly can break your RfWeb site. Please back up the web.config file before editing it.
Locate the line like this:
<protocolHandler enabled="true" platforms="(Macintosh|Windows NT).*((Firefox/((5[3-9]|[6789][0-9])|\d\d\d))|(Chrome/((4[2-9]|[56789][0-9])|\d\d\d)))(?!.*Edge)"
2. Remove (?!.*Edge) and save the file.
3. Now you can test the Receiver for Web site with Edge. You will encounter the Detect Receiver screen.