In single line text catalog variable Validation with URL

[Raj115]

Dear all ,

I have one variable  (Type - single line text) and I need a Regex Pattern that allows users that URL should not contain more than 500 words.

I written a on change client script

function onChange(control, oldValue, newValue, isLoading) {
if (isLoading || newValue == '') {
return;
}

//Type appropriate comment here, and begin script below

function validateURL(text) {

var urlRegex = /(https?:\/\/[^\s]+)/g;

var urls = text.match(urlRegex);

if (urls) {

for (var i = 0; i < urls.length; i++) {
var url = urls[i];

var urlWithoutProtocol = url.replace(/(^\w+:|^)\/\//, '');
var words = urlWithoutProtocol.split(/\s+/).length;
if (words > 500) {
return false; // URL contains more than 500 words
}
}
}

return true; // URL is valid
}

}

IT is not working , could you help me in this.

Regards,