Set the target type when creating the request for main resource

Source/core/page/CreateWindow.cpp

Index: Source/core/page/CreateWindow.cpp
diff --git a/Source/core/page/CreateWindow.cpp b/Source/core/page/CreateWindow.cpp
index 7289d186c36f91956af366e79087dc7b9b138d54..02c54f851f6ec3b10626475e5994c4c0a0d8e9f3 100644
--- a/Source/core/page/CreateWindow.cpp
+++ b/Source/core/page/CreateWindow.cpp
@@ -153,7 +153,9 @@ LocalFrame* createWindow(const String& urlString, const AtomicString& frameName,
         function(newFrame->domWindow(), functionContext);
 
     if (created) {
-        FrameLoadRequest request(callingWindow.document(), ResourceRequest(completedURL, referrer));
+        ResourceRequest resourceRequest = ResourceRequest(completedURL, referrer);
+        resourceRequest.initializeForMainResource(newFrame->isMainFrame());
+        FrameLoadRequest request(callingWindow.document(), resourceRequest);
         newFrame->loader().load(request);
     } else if (!urlString.isEmpty()) {
         newFrame->navigationScheduler().scheduleLocationChange(callingWindow.document(), completedURL.string(), referrer, false);
@@ -185,6 +187,7 @@ void createWindowForRequest(const FrameLoadRequest& request, LocalFrame& openerF
         newFrame->document()->setReferrerPolicy(openerFrame.document()->referrerPolicy());
     }
     FrameLoadRequest newRequest(0, request.resourceRequest());
+    newRequest.resourceRequest().initializeForMainResource(newFrame->isMainFrame());
     newRequest.setFormState(request.formState());
     newFrame->loader().load(newRequest);
 }