Web should be included as an add-to-app platform in the docs

[jmagman]

What information needs to be added?

https://docs.flutter.dev/platform-integration/web/embedding-flutter-web exists, but it's not clear in the docs that it's spiritually the same concept as add-to-app (even though it is linked from Add to an existing app > Add to a web app menu).

The docs should be changed to reflect that an existing web app can incrementally add Flutter, not just iOS and Android.

Where should this new content appear?

https://docs.flutter.dev/add-to-app https://docs.flutter.dev/add-to-app/debugging https://docs.flutter.dev/add-to-app/multiple-flutters https://docs.flutter.dev/add-to-app/performance

I would like to fix this problem.

• [ ] I will try and fix this problem on docs.flutter.dev.

[jmagman]

cc @ditman

[ditman]

I read the add-to-app bits for mobile, and the technical approach looks very different to what we have in web now, which is what would have been called "multi-view". I'm not sure that it's the same thing, and that's why I only added a small link on the "Add to app" section so people reading add to app documentation can find the web embedding.

I don't mind adding more detail to the add to app section, but I don't want to confuse users by "overloading" the feature name too much? :/

[jmagman]

cc @mariamhas what do you think about expanding the concept of add-to-app for the sake of web, in terms of "adding Flutter to an existing web app"? The technical details are pretty different, but I suppose the framing is more of a product question. @craiglabenz I know you were looking into our add-to-app docs, do you have an opinion?

[craiglabenz]

I have long thought of element embedding as web's "add to app", so this makes perfect sense to me.

[mariamhas]

I also thought of element embedding as web's add to app when we first proposed the feature. iframe is also a way to add to app for web so a web add to app section should include both technical approaches since they each have their own use cases as to why a developer may want to use iframe vs element embedding