Absolute setInterval and setTimeout to work in "stand by" tabs

absoluteTimers.js

function absoluteSetInterval(fn, millis) {
  try {
    var baseTime = Date.now();
    var callHandler = function() {
      if (Date.now() - baseTime > millis) {
        baseTime = Date.now();
        fn();
      }
    };
    return {
      _id: window.setInterval(callHandler.bind(this), 10),
      type: "interval",
      absolute: true
    };
  } catch (ex) {
    return {
      _id: window.setInterval(fn, millis),
      type: "interval",
      absolute: false
    };
  }
}

function absoluteClearInterval(timer) {
  return window.clearInterval(timer._id || timer);
}

function absoluteSetTimeout(fn, millis) {
  try {
    var _id;
    var baseTime = Date.now();
    var callHandler = function () {
      if (Date.now() - baseTime > millis) {
        baseTime = Date.now();
        fn();

        if(!!_id) window.clearInterval(_id);
      }
    };
    
    _id = window.setInterval(callHandler.bind(this), 10);

    return {
      _id: _id,
      type: "interval",
      absolute: true
    };
  } catch (ex) {
    return {
      _id: window.setTimeout(fn, millis),
      type: "timeout",
      absolute: false
    };
  }
}

function absoluteClearTimeout(timer) {
  if(typeof timer === "object" && timer.type === "interval") {
    return absoluteClearInterval(timer);
  }

  return window.clearTimeout(timer._id || timer);
}