#794 breaks access properties of URL objects

[PeterZhenhh]

Summary

After upgrading from 2.1.1 to 2.2.0+ (including 2.2.1), JSONata can no longer access properties of JavaScript URL objects.

This worked correctly in 2.1.1.

Reproduction

import jsonata from "jsonata";

const url = new URL("http://xxx.com/json/favicon.ico");

console.log(await jsonata("hostname").evaluate(url));
console.log(await jsonata("href").evaluate(url));

Expected (v2.1.1)

xxx.com
http://xxx.com/json/favicon.ico

Actual (v2.2.0+)

undefined
undefined

The URL object is valid:

console.log(url instanceof URL); // true
console.log(url.hostname); // "xxx.com"

Possible cause

It appears this change introduced the regression:

Before (v2.1.1):

} else if (input !== null && typeof input === 'object' && !isFunction(input)) {

After (v2.2.0):

} else if (
    input !== null &&
    typeof input === 'object' &&
    Object.prototype.hasOwnProperty.call(input, key) &&
    !isFunction(input)
) {

URL.hostname, URL.href, etc. are exposed through prototype getters rather than own properties, so hasOwnProperty() returns false.

As a result, JSONata no longer resolves these properties.

Question

Was this behavior change intentional?

If so, is there a recommended way to access properties from JavaScript built-in objects such as URL?