ArcGIS js 4.13 Custom Widget not loading in IE11 but works in chrome.

[StevenStapleton]

I am using arcGIS js 4.13. My issue I am having is my custom widget will not load in IE11 but works fine in google chrome. IE11 is throwing an object error but I wasn't able to find any useful information.

Please see attached file for source code. Any thoughts or ideas would be appreciated.

Thanks in advance!

[Noah-Sager]

I think this is due to some IE11 limitations. You can review some of the known limitations here:

System Requirements | ArcGIS API for JavaScript 4.13 

And/or check your some of your code functionality with something like caniuse for IE11 compatibility:

https://caniuse.com/