Everything old is new again! There's a little bit of an iframe renaissance happening, because even though iframes are a blunt instrument for combining content f

Everything old is new again! There's a little bit of an iframe renaissance happening, because even though iframes are a blunt instrument for combining content from different origins, they also have some really desirable features. Cross-origin iframes are completely sandboxed, they can be styled quite nicely as transparent overlays with css, and they are supported on all browsers (including mobile). Stripe Checkout uses iframes (in a super-nice, completely invisible) way. Intercom Messenger runs in (multiple, nested) iframes. Our startup makes an in-browser video calling product and last year we started seeing people hacking together "embedded" video calling by wrapping our call pages in iframes. We thought, "that's cool!" and launched a full API to support this growing set of use cases. [0] These days, if you want to combine interactive functionality on a web site, from multiple origins, you have several pretty good choices with different trade-offs: loading and using javascript libraries right in your DOM context, iframes, and (for patching in functionality at the user-level) Chrome extensions. Here's to asymptotically approaching the Project Xanadu feature set. [1] [0]-https://docs.daily.co/reference#iframe-hello-world https://docs.daily.co/reference#iframe-hello-world [1]-https://thenewstack.io/ted-nelson-can-still-learn-xanadu/ https://thenewstack.io/ted-nelson-can-still-learn-xanadu/