I'm using Flutter HtmlWidget for displaying Vimeo video but the issue is for android devices i'm not getting fullscreen button

Question

-------------- Original With issue --------------

Padding(
    padding: const EdgeInsets.symmetric(horizontal: 10.0),
    child: HtmlWidget('<p> <iframe src="https://player.vimeo.com/video/638758046" height="200" frameborder="0" allow="autoplay; fullscreen"></iframe> </p>',
                      webView: true,
                    ),
                  );

anybody has any solution for android devices please help me out in this issue.Also this same is working fine with iOs devices in iOs devices i'm getting the fullscreen button i don't know what is the issue is with android

-------------- Tried an solution --------------

Padding(
    padding: const EdgeInsets.symmetric(horizontal: 10.0),
    child: HtmlWidget('<p> <iframe src="https://player.vimeo.com/video/638758046" height="200" frameborder="0" allow="autoplay; fullscreen" allowfullscreen></iframe> </p>',
                      webView: true,
                    ),
                  );

I also tried to put allow full screen in Iframe but it did not helped me with it.