Possible cause: Starting with Google Chrome version 77 and Microsoft Edge (Chromium) it is possible that you no longer see the “always open these types of links in the associated app” prompt when an external app is launched through a link in Chrome or Edge.
Google Chrome workaround: Set the following registry value for allow-listing the Citrix Receiver, Citrix Workspace and the VMware Horizon client:
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Google\Chrome\URLWhitelist]
"1"="receiver://*"
"2"="vmware-view://*"
Microsoft Edge workaround: Set the following registry value for allow-listing the Citrix Receiver, Citrix Workspace and the VMware Horizon client:
[HKEY_CURRENT_USER\Software\Policies\Microsoft\Edge\URLAllowlist]
"1"="receiver://*"
"2"="vmware-view://*"
