Set the target type when creating the request for main resource

Source/core/loader/FrameLoader.cpp

Index: Source/core/loader/FrameLoader.cpp
diff --git a/Source/core/loader/FrameLoader.cpp b/Source/core/loader/FrameLoader.cpp
index f9ac63b279dda900df889b425685309cd7d8048c..c40699f33fda41c57d0b779aba542a3a7670fd8c 100644
--- a/Source/core/loader/FrameLoader.cpp
+++ b/Source/core/loader/FrameLoader.cpp
@@ -769,10 +769,11 @@ void FrameLoader::reportLocalLoadFailed(LocalFrame* frame, const String& url)
     frame->document()->addConsoleMessage(SecurityMessageSource, ErrorMessageLevel, "Not allowed to load local resource: " + url);
 }
 
-static ResourceRequest requestFromHistoryItem(HistoryItem* item, ResourceRequestCachePolicy cachePolicy)
+static ResourceRequest requestFromHistoryItem(HistoryItem* item, ResourceRequestCachePolicy cachePolicy, Frame* frame)
 {
     RefPtr<FormData> formData = item->formData();
     ResourceRequest request(item->url(), item->referrer());
+    request.initializeForMainResource(frame->isMainFrame());
     request.setCachePolicy(cachePolicy);
     if (formData) {
         request.setHTTPMethod("POST");
@@ -790,7 +791,8 @@ void FrameLoader::reload(ReloadPolicy reloadPolicy, const KURL& overrideURL, con
         return;
 
     ResourceRequestCachePolicy cachePolicy = reloadPolicy == EndToEndReload ? ReloadBypassingCache : ReloadIgnoringCacheData;
-    ResourceRequest request = requestFromHistoryItem(m_currentItem.get(), cachePolicy);
+    ResourceRequest request = requestFromHistoryItem(m_currentItem.get(), cachePolicy, m_frame);
+    request.initializeForMainResource(m_frame->isMainFrame());
     if (!overrideURL.isEmpty()) {
         request.setURL(overrideURL);
         request.clearHTTPReferrer();
@@ -1438,7 +1440,7 @@ void FrameLoader::loadHistoryItem(HistoryItem* item, HistoryLoadType historyLoad
         restoreScrollPositionAndViewState();
         return;
     }
-    loadWithNavigationAction(NavigationAction(requestFromHistoryItem(item, cachePolicy), FrameLoadTypeBackForward), FrameLoadTypeBackForward, nullptr, SubstituteData());
+    loadWithNavigationAction(NavigationAction(requestFromHistoryItem(item, cachePolicy, m_frame), FrameLoadTypeBackForward), FrameLoadTypeBackForward, nullptr, SubstituteData());
 }
 
 void FrameLoader::dispatchDocumentElementAvailable()