--- a/roundup/cgi/client.py	Thu Dec 09 15:26:39 2021 -0500
+++ b/roundup/cgi/client.py	Thu Dec 09 17:36:08 2021 -0500
@@ -340,7 +340,10 @@
     # Key can be explicitly file basename - value applied to just that file
     #     takes precedence over mime type.
     # Key can be mime type - all files of that mimetype will get the value
-    Cache_Control = {}
+    Cache_Control = {
+        'application/javascript': "public, max-age=1209600", # 2 weeks
+        'text/css':               "public, max-age=4838400", # 8 weeks/2 months
+    }
 
     # list of valid http compression (Content-Encoding) algorithms
     # we have available

--- a/test/test_liveserver.py	Thu Dec 09 15:26:39 2021 -0500
+++ b/test/test_liveserver.py	Thu Dec 09 17:36:08 2021 -0500
@@ -868,3 +868,33 @@
         self.assertDictEqual({ key: value for (key, value) in
                                f.headers.items() if key in expected },
                              expected)
+
+    def test_cache_control_css(self):
+        f = requests.get(self.url_base() + '/@@file/style.css',
+                             headers = {'content-type': "",
+                                        'Accept': '*/*'})
+        print(f.status_code)
+        print(f.headers)
+
+        self.assertEqual(f.status_code, 200)
+        self.assertEqual(f.headers['Cache-Control'], 'public, max-age=4838400')
+
+        f = requests.get(self.url_base() + '/@@file/style.css',
+                             headers = {'content-type': "",
+                                        'Accept': '*/*'})
+        print(f.status_code)
+        print(f.headers)
+
+        self.assertEqual(f.status_code, 200)
+        self.assertEqual(f.headers['Cache-Control'], 'public, max-age=4838400')
+
+    def test_cache_control_js(self):
+        f = requests.get(self.url_base() + '/@@file/help_controls.js',
+                             headers = {'content-type': "",
+                                        'Accept': '*/*'})
+        print(f.status_code)
+        print(f.headers)
+
+        self.assertEqual(f.status_code, 200)
+        self.assertEqual(f.headers['Cache-Control'], 'public, max-age=1209600')
+