Before I reach out to Anaplan Support, I wanted to see if others have been successful implementing SSO authentication using Apple's Safari browser. Chrome is our primary browser, but there is a subset of our users that use Apple laptops and then Safari by default. These are the steps that are taken and the outcome... it's very odd.
Authenticate via SSO to Anaplan - it opens a new tab
Anaplan tries to launch but never does. A "home" file is downloaded.
Not closing Safari, go back to the link for SSO to Anaplan and it opens a new tab. Anaplan then launches successfully.
NOTE: if the Safari browser is closed, then the entire set of steps above repeats.