I use iframes with my software to separate user accounts and other "SaaS boilerplate" into one web app that then proxies your web app and uses an iframe's srcdo

I use iframes with my software to separate user accounts and other "SaaS boilerplate" into one web app that then proxies your web app and uses an iframe's srcdoc to serve the content within a template regardless of which server it came from. Using the srcdoc attribute lets you skip an additional request and mask the server's address, but it comes with some additional API restrictions like not having document.location. https://userdashboard.github.io https://userdashboard.github.io I believe this approach was pioneered by Facebook some years ago in the earliest incarnation of their app platforms. There was no iframe sandboxing so they had an intermediate contrived language called "FBML" which compiled to a subset of HTML they allowed. That was the platform where Zynga made their fortune on Farmville originally, just before the iPhone.