We are trying to run our app in IE 11 and it has occur 'Promise' is undefined in Internet Explorer (IE 11) error.
After we have refer your post at https://www.syncfusion.com/forums/136797/39promise39-is-undefined-in-internet-explorer-ie-11
, we know that it could solve the problem with a internet connection.
But our client's environment is a internal network and can't be access internet. we have try to download https://cdn.polyfill.io/v2/polyfill.min.js file from internet and paste it into the local path as below, but same error has been occur. we are using Syncfusion.EJ2.MVC5.16.4.054please advance, thx.
@RenderSection("scripts", required: false)
/* Disable minification (remove `.min` from URL path) for more info */