1 files changed, 78 insertions, 0 deletions
diff --git a/dom/tests/browser/browser_bug1685807.js b/dom/tests/browser/browser_bug1685807.js
new file mode 100644
index 0000000000..0e0dae2b16
--- /dev/null
+++ b/dom/tests/browser/browser_bug1685807.js
@@ -0,0 +1,78 @@
+/**
+ * Bug 1685807 - Testing that the window.name won't be reset when loading an
+ *               about:blank page to a window which had loaded non-about:blank
+ *               page. And other case that window.name should be reset if
+ *               the document.domain has changed.
+ */
+
+"use strict";
+
+const EMPTY_URI =
+  "https://test1.example.com/browser/dom/tests/browser/file_empty.html";
+const TEST_URI =
+  "https://test1.example.com/browser/dom/tests/browser/file_bug1685807.html";
+
+add_setup(async function () {
+  await SpecialPowers.pushPrefEnv({
+    set: [["privacy.window.name.update.enabled", true]],
+  });
+});
+
+add_task(async function doTests() {
+  for (let testDocDomain of [false, true]) {
+    // Open an empty tab.
+    let tab = await BrowserTestUtils.openNewForegroundTab(gBrowser, EMPTY_URI);
+    let browser = tab.linkedBrowser;
+
+    // Create a promise in order to wait loading of the about:blank page.
+    let loadedPromise = BrowserTestUtils.browserLoaded(
+      browser,
+      false,
+      "about:blank"
+    );
+
+    // Set the window.name and document.domain.
+    SpecialPowers.spawn(
+      browser,
+      [TEST_URI, testDocDomain],
+      (aTestURI, aTestDocDomain) => {
+        content.name = "Test";
+
+        if (aTestDocDomain) {
+          content.document.domain = "example.com";
+        }
+
+        // Open the page which will trigger the loading of the about:blank page.
+        content.open(aTestURI);
+      }
+    );
+
+    // Wait until the about:blank page is loaded.
+    await loadedPromise;
+
+    // Check the window.name.
+    await SpecialPowers.spawn(browser, [testDocDomain], aTestDocDomain => {
+      if (aTestDocDomain) {
+        // The window.name should be reset if the document.domain was set to a
+        // cross-origin.
+        is(content.name, "", "The window.name should be reset.");
+      } else {
+        is(content.name, "Test", "The window.name shouldn't be reset.");
+      }
+    });
+
+    let awaitPageShow = BrowserTestUtils.waitForContentEvent(
+      browser,
+      "pageshow"
+    );
+    browser.goBack();
+    await awaitPageShow;
+
+    // Check the window.name.
+    await SpecialPowers.spawn(browser, [], () => {
+      is(content.name, "Test", "The window.name is correct.");
+    });
+
+    BrowserTestUtils.removeTab(tab);
+  }
+});