js SCRIPT1004 error in IE 10, how to fix?

Question

JavaScript

Hello.

I decided to test the site on IE 10 and found that in the console the lines where variables are set via let errors

SCRIPT1004: ';' is expected

Wherein ';' is present everywhere.
Example:

if(urlGet.type == 'success'){
        $('.success-top').addClass('active');
        let url = document.location.href.replace('/type=success/', '');
        history.pushState(null, null, url);
        setTimeout(() => {
            $('.success-top').removeClass('active');
        }, 3000)
  }

Swears at line 3 if this piece of code is removed, but finds the next let and swears at it.

What's the matter? How to fix?

Answer 1

Syntax support here (enable Show obsolete platforms ). Babel .