fix: make EventSource properties enumerable

lib/web/eventsource/eventsource.js

@@ -459,10 +459,60 @@ const constantsPropertyDescriptors = {
 Object.defineProperties(EventSource, constantsPropertyDescriptors)
 Object.defineProperties(EventSource.prototype, constantsPropertyDescriptors)
 
+Object.defineProperty(EventSource.prototype, 'readyState', {
+  enumerable: true,
+  get: function() {
+    return this.readyState;
+  }
+});
+
+Object.defineProperty(EventSource.prototype, 'url', {
+  enumerable: true,
+  get: function() {
+    return this.url;
+  }
+});
+
+Object.defineProperty(EventSource.prototype, 'withCredentials', {
+  enumerable: true,
+  get: function() {
+    return this.url;
+  }
+});
+
+Object.defineProperty(EventSource.prototype, 'close', {
+  enumerable: true,
+  get: function() {
+    return this.url;
+  }
+});
+
+Object.defineProperty(EventSource.prototype, 'onopen', {
+  enumerable: true,
+  get: function() {
+    return this.url;
+  }
+});
+
+Object.defineProperty(EventSource.prototype, 'onmessage', {
+  enumerable: true,
+  get: function() {
+    return this.url;
+  }
+});
+
+Object.defineProperty(EventSource.prototype, 'onerror', {
+  enumerable: true,
+  get: function() {
+    return this.url;
+  }
+});
+
 webidl.converters.EventSourceInitDict = webidl.dictionaryConverter([
   { key: 'withCredentials', converter: webidl.converters.boolean, defaultValue: false }
 ])
 
+
 module.exports = {
   EventSource,
   defaultReconnectionTime

test/eventsource/eventsource-properties.js

@@ -0,0 +1,15 @@
+'use strict'
+
+const { test } = require('node:test')
+const assert = require('node:assert')
+const { EventSource } = require('../..') // assuming the test is in test/eventsource/
+
+test('EventSource.prototype properties are configured correctly', () => {
+    const props = Object.entries(Object.getOwnPropertyDescriptors(EventSource.prototype))
+
+    for (const [key, value] of props) {
+        if (key !== 'constructor') {
+            assert(value.enumerable, `${key} is not enumerable`)
+        }
+    }
+})