JavaScript keeps reloading my page

Question

I am running this script on my page to replace mc= to MediaCode= in my url, the script works but it keeps reloading the page over and over.

This is the script:

<script>location.href = location.href.replace('mc=', 'MediaCode=')</script>

Answer 1

when you put

location.href = someHref

you make js to reload the page. Then, I gues, it meets that line again and continues reloading

Answer 2

Why not put this line into an if condition? This will check whether the URL contains the desired string or not and reload based on that:

const mcQueryParam = /mc\=/;

if(location.href.match(mcQueryParam)){
  location.href = location.href.replace(mcQueryParam, "MediaCode=");
}

Answer 3

The solution to this is a slight alteration to Xufox's solution

    <script type="text/javascript">$(document).ready(function () {
if(window.location.href.indexOf("mc=") > -1) {
location.href = location.href.replace('mc=', 'MediaCode=')
}});

Many thanks to Xufox