loaded = () => {

	                // Fix for threejs r89 delayed update
	                material.map.needsUpdate = true;

	                onProgress( { loaded: 1, total: 1 } );
	                onLoad();

	            }
Viewer handler event
@type {object}
@property {string} method - 'updateVideoPlayButton'
@property {boolean} data - Pause video or not