Scoped app issue with client Script that calls a script include

[ashamankun]

I have a scoped application and I'm trying to create a check on a due date field on a record producer that only allows a date after 8 weeks using a catalog client script and a script include. Both the client script and the script include are in the scoped application. On the script include the accessibility setting is set to all scopes. It doesn't appear to ever actually run the script include. It just give a pop up saying " ServiceNow says: GlideAjax". 

The exact same code outside of the scoped application works fine.  Scoped apps are new to me and I'm sure I'm just not entirely understanding how they work. Any guidance would be appreciated. 

Thank you!

Catalog Client Script:

function onChange(control, oldValue, newValue, isLoading) {
 
if(newValue){
var ga = new GlideAjax('x_ultr2_marketing.CheckDate8Weeks'); //Name of the Script Include
ga.addParam('sysparm_name', 'chkCatDate'); //Name of the function in the script include
ga.addParam('sysparm_date',g_form.getValue('u_due_date')); //Parameter to pass to the script include
ga.getXML(CheckDate8WeeksParse);
	alert(ga);

}
}
//Function that gets the response and will return to the client. You can place your alert in this function
function CheckDate8WeeksParse(response){
var answer = response.responseXML.documentElement.getAttribute("answer");
	//alert('Got to function');
if(answer == 'true'){
	alert('Got to answer true');
return;
}
if(g_form.getValue('u_due_date') != '' && answer == 'false'){
alert("You must give a lead time of at least 8 weeks. Thank You.");
g_form.setValue('u_due_date', '');
}
 
 

Script Include:

var CheckDate8Weeks = Class.create();
CheckDate8Weeks.prototype = Object.extendsObject(global.AbstractAjaxProcessor, {
chkCatDate : function() {
//gs.log("CheckDate8Weeks got to script inlucde"); 
var start = this.getParameter('sysparm_date'); //passing the parameter from the client script
var currDay = gs.now(); //getting the current date


var dif = gs.dateDiff(gs.now(), start, true);
  if (dif < 4838400) {
return false;
}
else
{
return true;
}

}});

[ashamankun]

Thank you Abhinay. That did the trick. Just had to modify the conditional but worked like a charm.

I really appreciate it.