Cannot read property 'top' of undefined

[ex1st]

Version of bootstrap "3.4.0"
Version of bootstrap-select "1.13.5"

Error throws if a container does not exist (maybe deleted from DOM).

/* can be changed to 
if (that.options.container && $container.length && !$container.is('body')) {
*/
if (that.options.container && !$container.is('body')) {
    containerPos = $container.offset();
    containerPos.top += parseInt($container.css('borderTopWidth')); // <--- this place
    containerPos.left += parseInt($container.css('borderLeftWidth'));
} else {
      containerPos = { top: 0, left: 0 };
}

[ex1st]

Hi @caseyjhol, I've prepared example - https://codepen.io/ex1st/pen/VqyGdo
Thank you.

[caseyjhol]

Released in v1.13.6!