wininet: Inherit INET_CALLBACKW from parent handler.

dlls/wininet/http.c

@@ -1007,6 +1007,7 @@ HINTERNET WINAPI HTTP_HttpOpenRequestW(LPWININETHTTPSESSIONW lpwhs,
     lpwhr->hdr.dwRefCount = 1;
     lpwhr->hdr.destroy = HTTP_CloseHTTPRequestHandle;
     lpwhr->hdr.lpfnStatusCB = lpwhs->hdr.lpfnStatusCB;
+    lpwhr->hdr.dwInternalFlags = lpwhs->hdr.dwInternalFlags & INET_CALLBACKW;
 
     WININET_AddRef( &lpwhs->hdr );
     lpwhr->lpHttpSession = lpwhs;
@@ -2401,7 +2402,7 @@ HINTERNET HTTP_Connect(LPWININETAPPINFOW hIC, LPCWSTR lpszServerName,
     lpwhs->hdr.htype = WH_HHTTPSESSION;
     lpwhs->hdr.dwFlags = dwFlags;
     lpwhs->hdr.dwContext = dwContext;
-    lpwhs->hdr.dwInternalFlags = dwInternalFlags;
+    lpwhs->hdr.dwInternalFlags = dwInternalFlags | (hIC->hdr.dwInternalFlags & INET_CALLBACKW);
     lpwhs->hdr.dwRefCount = 1;
     lpwhs->hdr.destroy = HTTP_CloseHTTPSessionHandle;
     lpwhs->hdr.lpfnStatusCB = hIC->hdr.lpfnStatusCB;