hello,
i have this iframe , i want JavaScript to pass the url after 10 second so my whole page can be load first then i pass url to iframe to start video
please advice
https://www.youtube.com/embed/C5cnZ-gZy2I
<iframe class="modest-vid-embed__item" allow="autoplay" width="640" height="360" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>