Unable to access properties in javascript

[Harshad_Kadam]

I am using Properties  in Apigee Edge to store key value pairs. When I try to read the keys it gives null value org.mozilla.javascript.Undefined@0 

below one is my javascript file

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<!-- vesrion maintainance-->
<Javascript async="false" continueOnError="false" enabled="true" timeLimit="200" name="EXT-JS-VersionKeyGenerator">
    <DisplayName>EXT-JS-VersionKeyGenerator</DisplayName>
    <Properties>
        <!--version1-->
        <Property name="ecommerce.redirect.orders.01-01-24">v1</Property>
        <Property name="ecommerce.redirect.payments.01-01-24">v1</Property>
        <Property name="ecommerce.redirect.users.01-01-24">v1</Property>
        <Property name="ecommerce.redirect.Authentication.01-01-24">v1</Property>
        <!--version2-->
        <Property name="ecommerce.redirect.orders.01-01-25">v2</Property>
        <Property name="ecommerce.redirect.payments.01-01-25">v2</Property>
        <Property name="ecommerce.redirect.users.01-01-25">v2</Property>
        <Property name="ecommerce.redirect.Authentication.01-01-25">v2</Property>
    </Properties>
    <ResourceURL>jsc://versionKeyGenerator.js</ResourceURL>
</Javascript>

 In following file I am trying to access it versionKeyGenerator.js

// get the version from request header + URI
var targetUrl = context.getVariable("target.url");
var pathSuffix = context.getVariable('proxy.pathsuffix');
var reqVersion = "EC-Version";

function orders() {
    return pathSuffix.includes("/order");
}
function payments() {
    return pathSuffix.includes("/pay");
}

var conditions = [
    { condition: orders, value: "orders" },
    { condition: payments, value: "payments.ecommerce" }
];

var matchingCondition = conditions.find(cond => cond.condition());
var requestPath = matchingCondition && matchingCondition.value || null;

reqVersion = "ecommerce.redirect."+ requestPath +'.'+ reqVersion;
context.setVariable("redirect.version", JSON.stringify(properties[reqVersion]));

Is there anything I am missing here.  @dchiesa1   @omidt