Error: "URL Invalid" when trying to define a redirect url for authorization policy

Access Manager setup and working properly. In order to role out a new application. admin configured a new Access Gateway proxy service and protected resource.

When configuring an Access Gateway Authorization policy for this protected resource, and setting the action to Redirect to URL and enter the following URL

https://aos.netiq.com/click/camref:100l8ge

We get a URL is Invalid error when pressing OK

We do not get that error when we truncate the URL to

https://aos.netiq.com/click/camref:100