SelectableText widget does not show toolbar on web

Selectable text not showing toolbar on web. I checked with below code and it is working on mobile devices. I also checked this. Is there any work around for this?

body: Container(
        color: Colors.green,
        child: Center(
          child: SelectableText(
            'This is my selectable text widget. Hope you like it',
            style: TextStyle(
              color: Colors.purple,
            ),
            showCursor: true,
            toolbarOptions: ToolbarOptions(copy: true, selectAll: true),
            onTap: () {},
          ),
        ),
      ),