1 files changed, 69 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..2be74b04d0
--- /dev/null
+++ b/docshell/test/browser/browser_bug1328501.js
@@ -0,0 +1,69 @@
+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
+        );
+      });
+    }
+  );
+});