I actually think that Portals couldn't be developed as a library. Otherwise Google would have done to use with AMP articles in the search carousel. Promoting an iframe to be the top level content in a smooth manner is not something you can just do with JavaScript, which is why they are adding this to the standard.
I actually think that Portals couldn't be developed as a library. Otherwise Google would have done to use with AMP articles in the search carousel. Promoting an iframe to be the top level content in a smooth manner is not something you can just do with JavaScript, which is why they are adding this to the standard.
I see it now, after reading web.dev/hands-on-portals/ and hope this can come to other engines soon :D