1 files changed, 12 insertions, 0 deletions
diff --git a/caps/nsScriptSecurityManager.cpp b/caps/nsScriptSecurityManager.cpp
index 842b41811e..7f3bdff8f9 100644
--- a/caps/nsScriptSecurityManager.cpp
+++ b/caps/nsScriptSecurityManager.cpp
@@ -225,6 +225,18 @@ uint32_t nsScriptSecurityManager::SecurityHashURI(nsIURI* aURI) {
   return NS_SecurityHashURI(aURI);
 }
 
+bool nsScriptSecurityManager::IsHttpOrHttpsAndCrossOrigin(nsIURI* aUriA,
+                                                          nsIURI* aUriB) {
+  if (!aUriA || (!net::SchemeIsHTTP(aUriA) && !net::SchemeIsHTTPS(aUriA)) ||
+      !aUriB || (!net::SchemeIsHTTP(aUriB) && !net::SchemeIsHTTPS(aUriB))) {
+    return false;
+  }
+  if (!SecurityCompareURIs(aUriA, aUriB)) {
+    return true;
+  }
+  return false;
+}
+
 /*
  * GetChannelResultPrincipal will return the principal that the resource
  * returned by this channel will use.  For example, if the resource is in