Favicon with IE with custom UI and SSO


Having an issue with the favicon in IE only and only when users authenticate via SSO. The icon is the c3 logo, it does not change to our application specified icon when the user gets to our React App after logging in.

<link rel="icon"  href="%PUBLIC_URL%/assets/images/favicon.ico" type="image/ico">

Other browsers handle this fine, but for some reason IE doesn’t
Any thoughts?