Enable SRI only for same origin and CORS content.

Source/core/html/HTMLLinkElement.cpp

Index: Source/core/html/HTMLLinkElement.cpp
diff --git a/Source/core/html/HTMLLinkElement.cpp b/Source/core/html/HTMLLinkElement.cpp
index 19b1f937d0a818888a3086ea13d5021841373e48..e0783b14c1fc7d3f0e4ec27d0c77fddbf69422b5 100644
--- a/Source/core/html/HTMLLinkElement.cpp
+++ b/Source/core/html/HTMLLinkElement.cpp
@@ -509,7 +509,7 @@ void LinkStyle::setCSSStyleSheet(const String& href, const KURL& baseURL, const
         return;
     }
 
-    if (!SubresourceIntegrity::CheckSubresourceIntegrity(*m_owner, cachedStyleSheet->sheetText(), KURL(KURL(), href), cachedStyleSheet->mimeType())) {
+    if (!cachedStyleSheet->errorOccurred() && !SubresourceIntegrity::CheckSubresourceIntegrity(*m_owner, cachedStyleSheet->sheetText(), KURL(baseURL, href), cachedStyleSheet->mimeType(), *cachedStyleSheet)) {
         m_loading = false;
         removePendingSheet();
         notifyLoadedSheetAndAllCriticalSubresources(true);