diff --git a/tests/cpp-empty-test/Classes/AppDelegate.cpp b/tests/cpp-empty-test/Classes/AppDelegate.cpp
index 396605feac..44199665a9 100644
--- a/tests/cpp-empty-test/Classes/AppDelegate.cpp
+++ b/tests/cpp-empty-test/Classes/AppDelegate.cpp
@@ -29,7 +29,12 @@ bool AppDelegate::applicationDidFinishLaunching() {
     director->setOpenGLView(glview);
 
     // Set the design resolution
+#if (CC_TARGET_PLATFORM == CC_PLATFORM_WP8)
+    // a bug in DirectX 11 level9-x on the device prevents ResolutionPolicy::NO_BORDER from working correctly
+    glview->setDesignResolutionSize(designResolutionSize.width, designResolutionSize.height, ResolutionPolicy::SHOW_ALL);
+#else
     glview->setDesignResolutionSize(designResolutionSize.width, designResolutionSize.height, ResolutionPolicy::NO_BORDER);
+#endif
 
 	Size frameSize = glview->getFrameSize();
     
diff --git a/tests/cpp-tests/Classes/AppDelegate.cpp b/tests/cpp-tests/Classes/AppDelegate.cpp
index 9c36a00913..a2ac38bb39 100644
--- a/tests/cpp-tests/Classes/AppDelegate.cpp
+++ b/tests/cpp-tests/Classes/AppDelegate.cpp
@@ -101,8 +101,8 @@ bool AppDelegate::applicationDidFinishLaunching()
     
     fileUtils->setSearchPaths(searchPaths);
 
-//    glview->setDesignResolutionSize(screenSize.width, screenSize.height, ResolutionPolicy::NO_BORDER);
 #if (CC_TARGET_PLATFORM == CC_PLATFORM_WP8) || (CC_TARGET_PLATFORM == CC_PLATFORM_WINRT)
+    // a bug in DirectX 11 level9-x on the device prevents ResolutionPolicy::NO_BORDER from working correctly
     glview->setDesignResolutionSize(designSize.width, designSize.height, ResolutionPolicy::SHOW_ALL);
 #else
     glview->setDesignResolutionSize(designSize.width, designSize.height, ResolutionPolicy::NO_BORDER);