// Carregando audios - fetch api e HTMLAudioElement function loadAudios() { var init = { mode: "same-origin", // por padrão é "cors" }; audiosUrl.forEach((url) => { fetch(url, init) .then(response => response.blob()) .then(function (myBlob) { audios.push(new Audio(URL.createObjectURL(myBlob))); //HTMLAudioElement }) }); } function playAudio() { audios[0].play(); } let audios = [] let audiosUrl = [ "audio/beep.mp3" ];