We're also seeing this in SharePoint
Hi, I have the similar issue like yours. However, we're using O365 sharepoint online which we tried on IIS binding Have you managed to resolved ?
I have a similar scenario. I can embed in an iFrame, and I get redirected to a login screen. That screen requires cookies, and I can't figure out how to allow cookies to get it to take. Everything is simple and running local, and we're just trying to embed a page in an intranet page.