1 files changed, 40 insertions, 0 deletions
diff --git a/browser/base/content/test/tabs/browser_allow_process_switches_despite_related_browser.js b/browser/base/content/test/tabs/browser_allow_process_switches_despite_related_browser.js
new file mode 100644
index 0000000000..f1b4a98021
--- /dev/null
+++ b/browser/base/content/test/tabs/browser_allow_process_switches_despite_related_browser.js
@@ -0,0 +1,40 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
+
+const DUMMY_FILE = "dummy_page.html";
+const DATA_URI = "data:text/html,Hi";
+const DATA_URI_SOURCE = "view-source:" + DATA_URI;
+
+// Test for bug 1328829.
+add_task(async function () {
+  let tab = await BrowserTestUtils.openNewForegroundTab(gBrowser, DATA_URI);
+  registerCleanupFunction(async function () {
+    BrowserTestUtils.removeTab(tab);
+  });
+
+  let promiseTab = BrowserTestUtils.waitForNewTab(gBrowser, DATA_URI_SOURCE);
+  BrowserViewSource(tab.linkedBrowser);
+  let viewSourceTab = await promiseTab;
+  registerCleanupFunction(async function () {
+    BrowserTestUtils.removeTab(viewSourceTab);
+  });
+
+  let dummyPage = getChromeDir(getResolvedURI(gTestPath));
+  dummyPage.append(DUMMY_FILE);
+  dummyPage.normalize();
+  const uriString = Services.io.newFileURI(dummyPage).spec;
+
+  let viewSourceBrowser = viewSourceTab.linkedBrowser;
+  let promiseLoad = BrowserTestUtils.browserLoaded(
+    viewSourceBrowser,
+    false,
+    uriString
+  );
+  BrowserTestUtils.loadURIString(viewSourceBrowser, uriString);
+  let href = await promiseLoad;
+  is(
+    href,
+    uriString,
+    "Check file:// URI loads in a browser that was previously for view-source"
+  );
+});