diff --git a/lib/WebGUI/Content/NotFound.pm b/lib/WebGUI/Content/NotFound.pm
index dac37d085..e92ea11ca 100644
--- a/lib/WebGUI/Content/NotFound.pm
+++ b/lib/WebGUI/Content/NotFound.pm
@@ -51,7 +51,14 @@ sub handler {
     my $requestedUrl = $session->url->getRequestedUrl;
     ##If they requested some snippet that doesn't exist any longer, then just
     ##return an empty string instead of generating the whole not found page.
-    if ($requestedUrl =~ /\.(?:js|css)$/) {
+    my $wants_js  = $requestedUrl =~ /\.js$/;
+    my $wants_css = $requestedUrl =~ /\.css$/;
+    if ($wants_js) {
+        $session->http->setMimeType('text/javascript');
+        return '';
+    }
+    elsif ($wants_js) {
+        $session->http->setMimeType('text/css');
         return '';
     }
 	my $notFound = WebGUI::Asset->getNotFound($session);