3 files changed, 57 insertions, 0 deletions
diff --git a/docshell/test/browser/browser.ini b/docshell/test/browser/browser.ini
index 9211092a49..28d5010ed8 100644
--- a/docshell/test/browser/browser.ini
+++ b/docshell/test/browser/browser.ini
@@ -1,5 +1,6 @@
 [DEFAULT]
 support-files =
+  dummy_page.html
   favicon_bug655270.ico
   file_bug234628-1-child.html
   file_bug234628-1.html
diff --git a/docshell/test/browser/browser_history_triggeringprincipal_viewsource.js b/docshell/test/browser/browser_history_triggeringprincipal_viewsource.js
new file mode 100644
index 0000000000..96908bbc20
--- /dev/null
+++ b/docshell/test/browser/browser_history_triggeringprincipal_viewsource.js
@@ -0,0 +1,50 @@
+"use strict";
+
+const TEST_PATH = getRootDirectory(gTestPath).replace("chrome://mochitests/content", "http://example.com");
+const HTML_URI = TEST_PATH + "dummy_page.html";
+const VIEW_SRC_URI = "view-source:" + HTML_URI;
+
+add_task(function*() {
+  info("load baseline html in new tab");
+  yield BrowserTestUtils.withNewTab(HTML_URI, function*(aBrowser) {
+    is(gBrowser.selectedBrowser.currentURI.spec, HTML_URI,
+       "sanity check to make sure html loaded");
+
+    info("right-click -> view-source of html");
+    let vSrcCtxtMenu = document.getElementById("contentAreaContextMenu");
+    let popupPromise = BrowserTestUtils.waitForEvent(vSrcCtxtMenu, "popupshown");
+    BrowserTestUtils.synthesizeMouseAtCenter("body", { type: "contextmenu", button: 2 }, aBrowser);
+    yield popupPromise;
+    let tabPromise = BrowserTestUtils.waitForNewTab(gBrowser, VIEW_SRC_URI);
+    let vSrcItem = vSrcCtxtMenu.getElementsByAttribute("id", "context-viewsource")[0];
+    vSrcItem.click();
+    vSrcCtxtMenu.hidePopup();
+    let tab = yield tabPromise;
+    is(gBrowser.selectedBrowser.currentURI.spec, VIEW_SRC_URI,
+       "loading view-source of html succeeded");
+
+    info ("load html file again before going .back()");
+    let loadPromise = BrowserTestUtils.browserLoaded(tab.linkedBrowser, false, HTML_URI);
+    yield ContentTask.spawn(tab.linkedBrowser, HTML_URI, HTML_URI => {
+      content.document.location = HTML_URI;
+    });
+    yield loadPromise;
+    is(gBrowser.selectedBrowser.currentURI.spec, HTML_URI,
+      "loading html another time succeeded");
+
+    info("click .back() to view-source of html again and make sure the history entry has a triggeringPrincipal");
+    let backCtxtMenu = document.getElementById("contentAreaContextMenu");
+    popupPromise = BrowserTestUtils.waitForEvent(backCtxtMenu, "popupshown");
+    BrowserTestUtils.synthesizeMouseAtCenter("body", { type: "contextmenu", button: 2 }, aBrowser);
+    yield popupPromise;
+    loadPromise = BrowserTestUtils.browserLoaded(tab.linkedBrowser, false, VIEW_SRC_URI);
+    let backItem = backCtxtMenu.getElementsByAttribute("id", "context-back")[0];
+    backItem.click();
+    backCtxtMenu.hidePopup();
+    yield loadPromise;
+    is(gBrowser.selectedBrowser.currentURI.spec, VIEW_SRC_URI,
+      "clicking .back() to view-source of html succeeded");
+
+    yield BrowserTestUtils.removeTab(tab);
+  });
+});
diff --git a/docshell/test/browser/dummy_page.html b/docshell/test/browser/dummy_page.html
new file mode 100644
index 0000000000..59bf2a5f8f
--- /dev/null
+++ b/docshell/test/browser/dummy_page.html
@@ -0,0 +1,6 @@
+<html>
+<head> <meta charset="utf-8"> </head>
+  <body>
+    just a dummy html file
+  </body>
+</html>