Using `[removed].hash.includes` throws “Object doesn't support property or method 'includes'” in IE11

Question

I am checking the URL to see if it contains or includes a ? in it to control the hash pop state in the window. All other browsers aren’t having an issue, only IE.

Answer 1

I had a similar issue with an Angular project. In my polyfills.ts I had to add both:

    import "core-js/es7/array";
    import "core-js/es7/object";

In addition to enabling all the other IE 11 defaults. (See comments in polyfills.ts if using angular)

After adding these imports the error went away and my Object data populated as intended.