Try this:
var video = document.getElementById("video-id-name");if ( video.readyState === 4 ) { // it's loaded}
Read here: https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/readyState
Try this:
var video = document.getElementById("video-id-name");if ( video.readyState === 4 ) { // it's loaded}
Read here: https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/readyState