1 files changed, 79 insertions, 0 deletions
diff --git a/docshell/test/browser/browser_bug349769.js b/docshell/test/browser/browser_bug349769.js
new file mode 100644
index 0000000000..92e8f78543
--- /dev/null
+++ b/docshell/test/browser/browser_bug349769.js
@@ -0,0 +1,79 @@
+add_task(async function test() {
+  const uris = [undefined, "about:blank"];
+
+  function checkContentProcess(newBrowser, uri) {
+    return ContentTask.spawn(newBrowser, [uri], async function (uri) {
+      var prin = content.document.nodePrincipal;
+      Assert.notEqual(
+        prin,
+        null,
+        "Loaded principal must not be null when adding " + uri
+      );
+      Assert.notEqual(
+        prin,
+        undefined,
+        "Loaded principal must not be undefined when loading " + uri
+      );
+
+      Assert.equal(
+        prin.isSystemPrincipal,
+        false,
+        "Loaded principal must not be system when loading " + uri
+      );
+    });
+  }
+
+  for (var uri of uris) {
+    await BrowserTestUtils.withNewTab(
+      { gBrowser },
+      async function (newBrowser) {
+        let loadedPromise = BrowserTestUtils.browserLoaded(newBrowser);
+        BrowserTestUtils.loadURIString(newBrowser, uri);
+
+        var prin = newBrowser.contentPrincipal;
+        isnot(
+          prin,
+          null,
+          "Forced principal must not be null when loading " + uri
+        );
+        isnot(
+          prin,
+          undefined,
+          "Forced principal must not be undefined when loading " + uri
+        );
+        is(
+          prin.isSystemPrincipal,
+          false,
+          "Forced principal must not be system when loading " + uri
+        );
+
+        // Belt-and-suspenders e10s check: make sure that the same checks hold
+        // true in the content process.
+        await checkContentProcess(newBrowser, uri);
+
+        await loadedPromise;
+
+        prin = newBrowser.contentPrincipal;
+        isnot(
+          prin,
+          null,
+          "Loaded principal must not be null when adding " + uri
+        );
+        isnot(
+          prin,
+          undefined,
+          "Loaded principal must not be undefined when loading " + uri
+        );
+        is(
+          prin.isSystemPrincipal,
+          false,
+          "Loaded principal must not be system when loading " + uri
+        );
+
+        // Belt-and-suspenders e10s check: make sure that the same checks hold
+        // true in the content process.
+        await checkContentProcess(newBrowser, uri);
+      }
+    );
+  }
+});