1 files changed, 115 insertions, 0 deletions
diff --git a/browser/components/sessionstore/test/browser_parentProcessRestoreHash.js b/browser/components/sessionstore/test/browser_parentProcessRestoreHash.js
new file mode 100644
index 0000000000..442914d580
--- /dev/null
+++ b/browser/components/sessionstore/test/browser_parentProcessRestoreHash.js
@@ -0,0 +1,115 @@
+"use strict";
+
+const SELFCHROMEURL =
+  "chrome://mochitests/content/browser/browser/" +
+  "components/sessionstore/test/browser_parentProcessRestoreHash.js";
+
+const Cm = Components.manager;
+
+const TESTCLASSID = "78742c04-3630-448c-9be3-6c5070f062de";
+
+const TESTURL = "about:testpageforsessionrestore#foo";
+
+let TestAboutPage = {
+  QueryInterface: ChromeUtils.generateQI(["nsIAboutModule"]),
+  getURIFlags(aURI) {
+    // No CAN_ or MUST_LOAD_IN_CHILD means this loads in the parent:
+    return (
+      Ci.nsIAboutModule.ALLOW_SCRIPT |
+      Ci.nsIAboutModule.URI_SAFE_FOR_UNTRUSTED_CONTENT |
+      Ci.nsIAboutModule.HIDE_FROM_ABOUTABOUT
+    );
+  },
+
+  newChannel(aURI, aLoadInfo) {
+    // about: page inception!
+    let newURI = Services.io.newURI(SELFCHROMEURL);
+    let channel = Services.io.newChannelFromURIWithLoadInfo(newURI, aLoadInfo);
+    channel.originalURI = aURI;
+    return channel;
+  },
+
+  createInstance(iid) {
+    return this.QueryInterface(iid);
+  },
+
+  register() {
+    Cm.QueryInterface(Ci.nsIComponentRegistrar).registerFactory(
+      Components.ID(TESTCLASSID),
+      "Only here for a test",
+      "@mozilla.org/network/protocol/about;1?what=testpageforsessionrestore",
+      this
+    );
+  },
+
+  unregister() {
+    Cm.QueryInterface(Ci.nsIComponentRegistrar).unregisterFactory(
+      Components.ID(TESTCLASSID),
+      this
+    );
+  },
+};
+
+/**
+ * Test that switching from a remote to a parent process browser
+ * correctly clears the userTypedValue
+ */
+add_task(async function () {
+  await SpecialPowers.pushPrefEnv({
+    set: [["dom.security.skip_about_page_has_csp_assert", true]],
+  });
+
+  TestAboutPage.register();
+  let tab = await BrowserTestUtils.openNewForegroundTab(
+    gBrowser,
+    "http://example.com/",
+    true,
+    true
+  );
+  ok(tab.linkedBrowser.isRemoteBrowser, "Browser should be remote");
+
+  let resolveLocationChangePromise;
+  let locationChangePromise = new Promise(
+    r => (resolveLocationChangePromise = r)
+  );
+  let wpl = {
+    onStateChange(listener, request, state, status) {
+      let location = request.QueryInterface(Ci.nsIChannel).originalURI;
+      // Ignore about:blank loads.
+      let docStop =
+        Ci.nsIWebProgressListener.STATE_STOP |
+        Ci.nsIWebProgressListener.STATE_IS_NETWORK;
+      if (location.spec == "about:blank" || (state & docStop) != docStop) {
+        return;
+      }
+      is(location.spec, TESTURL, "Got the expected URL");
+      resolveLocationChangePromise();
+    },
+  };
+  gBrowser.addProgressListener(wpl);
+
+  gURLBar.value = TESTURL;
+  gURLBar.select();
+  EventUtils.sendKey("return");
+
+  await locationChangePromise;
+
+  ok(!tab.linkedBrowser.isRemoteBrowser, "Browser should no longer be remote");
+
+  is(gURLBar.value, TESTURL, "URL bar visible value should be correct.");
+  is(gURLBar.untrimmedValue, TESTURL, "URL bar value should be correct.");
+  is(
+    gURLBar.getAttribute("pageproxystate"),
+    "valid",
+    "URL bar is in valid page proxy state"
+  );
+
+  ok(
+    !tab.linkedBrowser.userTypedValue,
+    "No userTypedValue should be on the browser."
+  );
+
+  BrowserTestUtils.removeTab(tab);
+  gBrowser.removeProgressListener(wpl);
+  TestAboutPage.unregister();
+});