Mulit Domans JS URL Params

JS URL Params.js

add_action('wp_footer', 'custom_JS') ; 

function custom_JS() {
echo <<<'JS'
<script type="text/javascript">
  function removeParam(parameter)
    {
        var url=document.location.href;
        var urlparts= url.split('?');
      
       if (urlparts.length>=2)
       {
        var urlBase=urlparts.shift(); 
        var queryString=urlparts.join("?"); 
      
        var prefix = encodeURIComponent(parameter)+'=';
        var pars = queryString.split(/[&;]/g);
        for (var i= pars.length; i-->0;)               
            if (pars[i].lastIndexOf(prefix, 0)!==-1)   
                pars.splice(i, 1);
        url = urlBase;
        window.history.pushState('',document.title,url);
      }
    return url;
  }
  removeParam('_multidomain_action');
</script>
JS;
}