in Flutter Web

I’m trying to use the following code snippet:
    text: 'Hello', // default text style
    children: <TextSpan>[
      TextSpan(text: ' beautiful ', style: TextStyle(fontStyle: FontStyle.italic)),
      TextSpan(text: 'world', style: TextStyle(fontWeight: FontWeight.bold)),

After exporting for the web I noticed that the text is not selectable. Is it by chance a feature not supported for the web but only on mobile?