code: function makeElementSelectable(element) {
        if (typeof element.onselectstart !== 'undefined') {
          element.onselectstart = null;
        }
        if (selectProp) {
          element.style[selectProp] = '';
        }
        else if (typeof element.unselectable == 'string') {
          element.unselectable = '';
        }
        return element;
      }
docs: Makes element selectable
  @method makeElementSelectable
  @memberOf fabric.util
  @param {HTMLElement} element Element to make selectable
  @return {HTMLElement} Element that was passed in