make chromium slightly happier

glsl/sliders.js

  sliderValueEl.textContent = sliderEl.value;
  sliderContainerEl.appendChild(sliderValueEl);
  sliderEl.addEventListener("input", () => sliderValueEl.textContent = sliderEl.value);
  sliderEl.addEventListener("input", function() { sliderValueEl.textContent = sliderEl.value });
  
  return sliderContainerEl;
}
  containerEl.appendChild(labelEl);
    
  var names = [".x", ".y", ".z", ".y"];
  ranges.forEach((range, i) => {
  ranges.forEach(function(range, i) {
    containerEl.appendChild(makeSlider(names[i], range, function(ev) {
      onChange(ev, i);
    }));
}
function addSliders(parent, sliders) {
  sliders.forEach((slider) => {
  sliders.forEach(function(slider) {
    switch (slider.type) {
      case "int":
      case "float":
        
      case "vec2":
      case "vec3":
        slider.values = slider.range.map((r) => r[1]);
        slider.values = slider.range.map(function(r) { return r[1] });
        slider.uniform = gl.getUniformLocation(program, slider.name);
        if (slider.type == "vec2") {
          gl.uniform2f(slider.uniform, slider.values[0], slider.values[1]);