What's wrong with Edge'm?

Question

JavaScript

In all major browsers, the code works fine, the slider value changes immediately, but this Edge...
For some reason, the value is displayed after the window is closed, BUT it is valid in the inspector (see screenshot below).

(function (angular, module) {

  'use strict';

  module
    .directive('psEffectsDurationSlider', EffectsDurationSlider);

  EffectsDurationSlider.$inject = [];

  function EffectsDurationSlider() {
    return {
      require:  'ngModel',
      restrict: 'E',
      link:     link
    };

    function link(scope, element, attrs, ngModel) {
      ngModel.$render = render;

      activate();

      function initializeSlider() {
        element.slider({
          min:         0.2,
          max:         2,
          step:        0.1,
          animate:     true,
          orientation: 'horizontal',
          range:       'min',
          slide:       onSliderChange
        });
      }

      function render() {
        element.slider('value', ngModel.$viewValue);
      }

      function onSliderChange(event, ui) {
        ngModel.$setViewValue(ui.value);
      }

      function onScopeDestroy() {
        element.slider('destroy');
      }

      function activate() {
        initializeSlider();

        scope.$on('$destroy', onScopeDestroy);
      }
    }
  }

})(window.angular, window.angular.module('...'));

And, actually, the most interesting: