Hide the comment field during a transition

<iframe width="560" height="315" src="https://www.youtube.com/embed/Vb5SpeysQWg" frameborder="0" gesture="media" allow="encrypted-media" allowfullscreen></iframe>

This live field script is called during a transition and hides the Comments field.

if(argv["screen"] == "trans_41") {
    lfHide("comments_tab");
    lfHide("addComment");
}