update acf form using query string

function ghjut35_script() {
	if(is_singular('product')){
?>
<script type="text/javascript">
function QueryStringToJSON() {            
    var pairs = location.search.slice(1).split('&');
    
    var result = {};
    pairs.forEach(function(pair) {
        pair = pair.split('=');
        result[pair[0]] = decodeURIComponent(pair[1] || '');
    });

    return JSON.parse(JSON.stringify(result));
}
var query_string = QueryStringToJSON();
//console.log(query_string);
for (var key in query_string) {
    if (query_string.hasOwnProperty(key)) {
        //console.log(key + " -> " + query_string[key]);
        //jQuery("#"+key).find("input").val(query_string[key]);
	document.getElementById(key).value = query_string[key];
    }
}
</script>
<?php
}
}
add_action( 'wp_footer', 'ghjut35_script', 100 );