Cannot read property 'userAgent' of undefined

[pld000]

Hi there!
I encountered a problem when webpack processes application.
In react-image-lightbox/dist/main.js I found next code
function getIEVersion() { if ("undefined" != typeof window) { var match = window.navigator.userAgent.match(/(?:MSIE |Trident\/.*; rv:)(\d+)/); return match ? parseInt(match[1], 10) : void 0; } }

As I understand window.navigator maybe undefined, and necessary to add checking for this.