I'm attempting to change the favicon for our Portal site (10.5.1). Upon loading, the favicon does not show up--not even the Esri default one.We followed the steps here: How To: Add a custom favicon to Portal for ArcGIS, but with no success. This included adding the favicon.ico image to the wwwroot folder and the webadaptor folder, then clearing the browser's cache.
Is there an updated procedure?