geekonweb

(function() { 
  var CSSCriticalPath = function(w, d, opts) {
    var opt = opts || {};
    var css = {};
    var pushCSS = function(r) {
      if(!!css[r.selectorText] === false) css[r.selectorText] = {};
      var styles = r.style.cssText.split(/;(?![A-Za-z0-9])/);
      for(var i = 0; i < styles.length; i++) {
        if(!!styles[i] === false) continue;
        var pair = styles[i].split(": ");

geekonweb

(function() {
  let canvas = document.querySelector('canvas');
  // Optional frames per second argument.
  let stream = canvas.captureStream(25);
  var options = {mimeType: 'video/webm; codecs=vp9'};
  let recorder = new MediaRecorder(stream, options);
  let blobs = [];

  function download(blob) {
    var url = window.URL.createObjectURL(blob);

geekonweb

(function() {
  // Download locally
  function download(blob) {
    var url = window.URL.createObjectURL(blob);
    var a = document.createElement('a');
    a.style.display = 'none';
    a.href = url;
    a.download = 'test.webm';
    document.body.appendChild(a);
    a.click();