var track = document.querySelector("track"), track_div = document.getElementById("track"); track.addEventListener('cuechange', function () { let cues = track.track.activeCues; // array of current cues console.log("cuechange", cues, cues[0].text, cues[0].startTime, cues[0].endTime); var d = JSON.parse(cues[0].text); console.log("d",d); });