Unable to decompose a URL to get the parameters

[ArpitaVK]

Hello, I am trying to decompose a URL and get its parameters. I was able to get the URL using catalog client script. In that used URL(top.location).

Also, I was able to get the rest of the required parameters. But there is one parameter 'url' in that URL. I am getting null value for it even though it is present in the URL. How to get that parameter value? 

here is the sample URL: https://instance_name.service-now.com/sp?id=sc_cat_item&sys_id=sample_sys_id&sysparm_category=category_sys_id%3Furl%3Dhttp:%2F%2Fsample_url%2Fhttp-post%2F&referer=&reason=abc&reasoncode=xyz

[dgarad]

Hi @ArpitaVK 

create onLoad client script. try the below code.

var url= getParameterValue('url');




function getParameterValue(name) {
    name = name.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");
    var regexS = "[\\?&]" + name + "=([^&#]*)";
    var regex = new RegExp(regexS);
    var results = regex.exec(top.location);
    if (results == null) {
        return "";
    } else {
        return unescape(results[1]);
    }
}

[ArpitaVK]

Hi @dgarad 

Using above code I am not getting any parameter now.

[dgarad]

can you share your code.

[ArpitaVK]

function onLoad() {

    var url = getParameterValue('url');

    var blockReason = getParameterValue('reason');

    var reasonCode = getParameterValue('reasoncode');

    var action = getParameterValue('action');

    var urlCategory = getParameterValue('cat');   

    var desc = 'Block Reason: ' + blockReason + '\n Reason Code: ' + reasonCode + '\n Action: ' + action + '\n URL Category: ' + urlCategory;

    var shortDesc = 'url = ' + url;

    g_form.setValue('short_description', shortDesc);

    g_form.setValue('description', desc);

}

function getParameterValue(name) {

    // var url = new URL(top.location);

    var url = new URL('https://instance_name.service-now.com/sp?id=sc_cat_item&sys_id=sample_sys_id&sysparm_category=category_sys_id%3Furl%3Dhttp:%2F%2Fsample_url%2Fhttp-post%2F&referer=&reason=abc&reasoncode=xyz');

    var results = url.searchParams.get(name);  

    if (results == null) {

        return '';

    } else {

        return results;

    }

}