Menu not workgin properly in IE11

Hello!

I’m having an issue with IE11: links are not working properly. The first time I load the page and navigate in my website the link are not active, BUT if it refresh the page they works, even thoguh not always. It happens only with Internet Explorer.

Error log said it was a “object doesn’t support property or method ‘addeventlistener'”.

So I tried to edit the navigate.js of my theme from this

for ( i = 0, len = links.length; i < len; i++ ) {
		links[i].addEventListener( 'focus', toggleFocus, true );
		links[i].addEventListener( 'blur', toggleFocus, true );
	}

to this

for ( i = 0, len = links.length; i < len; i++ ) {

		 if (links[i].addEventListener) { // W3C DOM
		 	links[i].addEventListener( 'focus', toggleFocus, true );
		links[i].addEventListener( 'blur', toggleFocus, true );}
      
   else if (links[i].attachEvent) { // IE DOM
     
		links[i].attachEvent( 'focus', toggleFocus, true );
		links[i].attachEvent( 'blur', toggleFocus, true );
	}
}

Now, I don’t get the error anymore, but other people do. What it can be? Is the code I edited correct?

Thanks