1 files changed, 64 insertions, 0 deletions
diff --git a/docshell/test/browser/browser_bug1328501.js b/docshell/test/browser/browser_bug1328501.js
new file mode 100644
index 0000000000..32cc281f53
--- /dev/null
+++ b/docshell/test/browser/browser_bug1328501.js
@@ -0,0 +1,64 @@
+const HTML_URL =
+  "http://mochi.test:8888/browser/docshell/test/browser/file_bug1328501.html";
+const FRAME_URL =
+  "http://mochi.test:8888/browser/docshell/test/browser/file_bug1328501_frame.html";
+const FRAME_SCRIPT_URL =
+  "chrome://mochitests/content/browser/docshell/test/browser/file_bug1328501_framescript.js";
+add_task(async function testMultiFrameRestore() {
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      ["browser.navigation.requireUserInteraction", false],
+      // Disable bfcache so that dummy_page.html doesn't enter there.
+      // The actual test page does already prevent bfcache and the test
+      // is just for http-on-opening-request handling in the child process.
+      ["browser.sessionhistory.max_total_viewers", 0],
+    ],
+  });
+  await BrowserTestUtils.withNewTab({ gBrowser, url: HTML_URL }, async function(
+    browser
+  ) {
+    // Navigate 2 subframes and load about:blank.
+    let browserLoaded = BrowserTestUtils.browserLoaded(browser);
+    await SpecialPowers.spawn(browser, [FRAME_URL], async function(FRAME_URL) {
+      function frameLoaded(frame) {
+        frame.contentWindow.location = FRAME_URL;
+        return new Promise(r => (frame.onload = r));
+      }
+      let frame1 = content.document.querySelector("#testFrame1");
+      let frame2 = content.document.querySelector("#testFrame2");
+      ok(frame1, "check found testFrame1");
+      ok(frame2, "check found testFrame2");
+      await frameLoaded(frame1);
+      await frameLoaded(frame2);
+      content.location = "dummy_page.html";
+    });
+    await browserLoaded;
+
+    // Load a frame script to query nsIDOMWindow on "http-on-opening-request",
+    // which will force about:blank content viewers being created.
+    browser.messageManager.loadFrameScript(FRAME_SCRIPT_URL, false);
+
+    // The frame script also forwards frames-loaded.
+    let framesLoaded = BrowserTestUtils.waitForMessage(
+      browser.messageManager,
+      "test:frames-loaded"
+    );
+
+    browser.goBack();
+    await framesLoaded;
+    // eslint-disable-next-line mozilla/no-arbitrary-setTimeout
+    await new Promise(r => setTimeout(r, 1000));
+    await SpecialPowers.spawn(browser, [FRAME_URL], FRAME_URL => {
+      is(
+        content.document.querySelector("#testFrame1").contentWindow.location
+          .href,
+        FRAME_URL
+      );
+      is(
+        content.document.querySelector("#testFrame2").contentWindow.location
+          .href,
+        FRAME_URL
+      );
+    });
+  });
+});