Consider "mixed content XHR" as mixed script instead of mixed display.

Source/core/loader/DocumentThreadableLoader.cpp

Index: Source/core/loader/DocumentThreadableLoader.cpp
diff --git a/Source/core/loader/DocumentThreadableLoader.cpp b/Source/core/loader/DocumentThreadableLoader.cpp
index 58beed301e8867279e5b4c7964862a5fc7fa2fcf..5ae09a9e4425100ef03d7b2dc89abfe7fe41b240 100644
--- a/Source/core/loader/DocumentThreadableLoader.cpp
+++ b/Source/core/loader/DocumentThreadableLoader.cpp
@@ -394,7 +394,7 @@ void DocumentThreadableLoader::loadRequest(const ResourceRequest& request, Secur
     unsigned long identifier = std::numeric_limits<unsigned long>::max();
     if (Frame* frame = m_document->frame()) {
         Frame* top = frame->tree()->top();
-        if (!top->loader()->mixedContentChecker()->canDisplayInsecureContent(top->document()->securityOrigin(), requestURL)) {
+        if (!top->loader()->mixedContentChecker()->canRunInsecureContent(top->document()->securityOrigin(), requestURL)) {
             m_client->didFail(error);
             return;
         }