SSO redirect replaces LINK path with POUND # sign

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I'm trying to use Microflow URL's to replace my deep links. I've tried with microflows that have both anonymous and a regular role access.  I normally force a redirection to /SSO/ but for just experimenting I created two buttons, each of which redirect such as the following   window.location.href = '/SSO/login?cont=link/invitation';   window.location.href = '/SSO/login?cont=link/test';   My URL prefix is "link". When this javascript executes, it redirects to my IDP and when it comes back, instead of returning to "/link/invittation" or "/link/test" ir has a "#" symbol in place of the word "link" so it looks like "/#/invitation". What I see is the same page with the buttons instead of my landing page.  What gives?
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