From c725e6294b25d3a7758937f8e512e46fcf3d2fb3 Mon Sep 17 00:00:00 2001
From: mAAdhaTTah <jamesorodig@gmail.com>
Date: Fri, 27 Mar 2020 22:08:30 -0400
Subject: [PATCH] Add support for responseURL to fakeXHR

Source: https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/responseURL
---
 lib/fake-xhr/index.js      |  2 ++
 lib/fake-xhr/index.test.js | 20 ++++++++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/lib/fake-xhr/index.js b/lib/fake-xhr/index.js
index 9488f59..8be74c9 100644
--- a/lib/fake-xhr/index.js
+++ b/lib/fake-xhr/index.js
@@ -804,6 +804,8 @@ function fakeXMLHttpRequestFor(globalScope) {
             this.setStatus(status);
             this.setResponseHeaders(headers || {});
             this.setResponseBody(body || "");
+
+            this.responseURL = this.url;
         },
 
         uploadProgress: function uploadProgress(progressEventRaw) {
diff --git a/lib/fake-xhr/index.test.js b/lib/fake-xhr/index.test.js
index e6bd8b7..bd9eeec 100644
--- a/lib/fake-xhr/index.test.js
+++ b/lib/fake-xhr/index.test.js
@@ -1907,6 +1907,26 @@ describe("FakeXMLHttpRequest", function() {
         });
     });
 
+    describe(".responseURL", function() {
+        beforeEach(function() {
+            this.xhr = new FakeXMLHttpRequest();
+        });
+
+        it("should set responseURL after response", function() {
+            this.xhr.open("GET", "/");
+
+            assert.isUndefined(this.xhr.responseURL);
+
+            this.xhr.send();
+
+            assert.isUndefined(this.xhr.responseURL);
+
+            this.xhr.respond(200, {}, "");
+
+            assert.equals(this.xhr.responseURL, "/");
+        });
+    });
+
     describe("stub XHR", function() {
         beforeEach(fakeXhrSetUp);
         afterEach(fakeXhrTearDown);