--- a/netwerk/protocol/viewsource/nsViewSourceChannel.cpp
+++ b/netwerk/protocol/viewsource/nsViewSourceChannel.cpp
@@ -945,18 +945,17 @@ NS_IMETHODIMP
 nsViewSourceChannel::GetOriginalResponseHeader(const nsACString & aHeader,
                                                nsIHttpHeaderVisitor *aVisitor)
 {
     nsAutoCString value;
     nsresult rv = GetResponseHeader(aHeader, value);
     if (NS_FAILED(rv)) {
         return rv;
     }
-    aVisitor->VisitHeader(aHeader, value);
-    return NS_OK;
+    return aVisitor->VisitHeader(aHeader, value);
 }
 
 NS_IMETHODIMP
 nsViewSourceChannel::VisitOriginalResponseHeaders(nsIHttpHeaderVisitor *aVisitor)
 {
     return VisitResponseHeaders(aVisitor);
 }