CSP: Fix 'strict-dynamic' with multiple policies.

third_party/WebKit/Source/core/html/parser/PreloadRequest.cpp

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/html/parser/PreloadRequest.h"
 
 #include "core/dom/Document.h"
 #include "core/fetch/FetchInitiatorInfo.h"
 #include "core/fetch/ResourceFetcher.h"
 #include "platform/CrossOriginAttributeValue.h"
@@ skipping 32 matching lines @@
                                         CrossOriginAttributeAnonymous);
   }
   if (m_crossOrigin != CrossOriginAttributeNotSet)
     request.setCrossOriginAccessControl(document->getSecurityOrigin(),
                                         m_crossOrigin);
   request.setDefer(m_defer);
   request.setResourceWidth(m_resourceWidth);
   request.clientHintsPreferences().updateFrom(m_clientHintsPreferences);
   request.setIntegrityMetadata(m_integrityMetadata);
   request.setContentSecurityPolicyNonce(m_nonce);
+  request.setParserDisposition(ParserInserted);
 
   if (m_requestType == RequestTypeLinkRelPreload)
     request.setLinkPreload(true);
   return request;
 }
 
 }  // namespace blink