1 files changed, 72 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..6fde42e876
--- /dev/null
+++ b/docshell/test/browser/browser_bug349769.js
@@ -0,0 +1,72 @@
+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.loadURI(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);
+    });
+  }
+});