diff --git a/openlibrary/plugins/openlibrary/js/service-worker.js b/openlibrary/plugins/openlibrary/js/service-worker.js
index 84a0ee2fc09..8c3e992c191 100644
--- a/openlibrary/plugins/openlibrary/js/service-worker.js
+++ b/openlibrary/plugins/openlibrary/js/service-worker.js
@@ -49,6 +49,7 @@ registerRoute(
                 maxEntries: 100,
                 maxAgeSeconds: DAY_SECONDS * 365,
             }),
+            cacheableResponses
         ],
     })
 );
diff --git a/openlibrary/plugins/upstream/code.py b/openlibrary/plugins/upstream/code.py
index 95ced4c0949..e5b3cb3568a 100644
--- a/openlibrary/plugins/upstream/code.py
+++ b/openlibrary/plugins/upstream/code.py
@@ -37,12 +37,13 @@
 logger = logging.getLogger('openlibrary.plugins.upstream.code')
 
 
+# Note: This is done in web_nginx.conf on production ; this endpoint is
+# only used in development/gitpod.
 class static(delegate.page):
     path = "/images/.*"
 
     def GET(self):
-        host = 'https://%s' % web.ctx.host if 'openlibrary.org' in web.ctx.host else ''
-        raise web.seeother(host + '/static' + web.ctx.path)
+        return web.seeother(f'/static{web.ctx.path}')
 
 
 class history(delegate.mode):