JSFiddle - React, Tailwind, and code Playground

HTML

フィードバックのあるオーディオグラフを Panner に接続すると Safai が死ぬ
<div>
<button id="test">test</button>
</div>

JavaScript

var AudioContext = window.AudioContext || window.webkitAudioContext;
var audioContext = new AudioContext();

document.getElementById("test").onclick = function() {
    var t0 = audioContext.currentTime;
    var t1 = t0 + 0.5;
    var osc = audioContext.createOscillator();
    var amp = audioContext.createGain();
    var delay = audioContext.createDelay();
    var feedback = audioContext.createGain();
    var pan = audioContext.createPanner();
    
    // panner でなければ大丈夫
    // pan = audioContext.createGain();
    
    osc.start(t0);
    osc.stop(t1);
    osc.connect(amp);
    
    amp.gain.setValueAtTime(1, t0);
    amp.gain.linearRampToValueAtTime(0, t1);
    amp.connect(delay);
    
    delay.delayTime.value = 0.25;
    delay.connect(feedback);
    delay.connect(pan);
    
    feedback.gain.value = 0.8;
    feedback.connect(delay);
    
    pan.connect(audioContext.destination);
};