<!DOCTYPE html> <html class="reftest-wait"> <script> function boom() { var ac = new window.AudioContext(); var panner = ac.createPanner(); panner.setPosition(8, 0.7643051305237005, 0.10292575673733972); var oscillator = ac.createOscillator(); oscillator.connect(panner); oscillator.start(0); setTimeout(function() { panner.panningModel = 'equalpower'; oscillator.stop(0); document.documentElement.removeAttribute("class"); }, 0.5); } boom(); </script> </html>