[FEATURE] iframe support via WebViews on Flutter for Web

[erickok]

Describe your feature request

We use flutter_webview to render iframes, but this only support Flutter for Android and iOS. On Flutter for Web this does nothing - iframes are not rendered.

However, we are so close to full Flutter for Web support that having support for iframe rendering would be nice.
Additional context

It first seemed unfeasible and out of scope, but I found this post explaining how we can actually render html trees in Flutter Web: https://stackoverflow.com/questions/58150503/webview-in-flutter-web

This is actually directly supported by the flutter_webview alternative package https://pub.dev/packages/easy_web_view/changelog

A picture of a cute animal (not mandatory but encouraged)

[tneotia]

I thought I coded this in? Maybe I remember wrong but it should be very easy to implement this if it isn't already.

[erickok]

I think you are right! https://github.com/Sub6Resources/flutter_html/blob/master/lib/src/widgets/iframe_web.dart

I will test this and if it works close this ticket. Also good to know wrt #875 as we supoort more already on web than I though we did.

[erickok]

Fixed in 2.2.0 release which has explicitly defined web support.