diff --git a/lilac/server.py b/lilac/server.py
index fe044831..f9951b78 100644
--- a/lilac/server.py
+++ b/lilac/server.py
@@ -97,13 +97,14 @@ async def __call__(self, scope: Scope, receive: Receive, send: Send) -> None:
     """Redirect trailing slashes to non-trailing slashes."""
     url = URL(scope=scope).path
     print('url=', url)
-    root_path = scope.get('root_path')
+    root_path = scope.get('root_path') or ''
     ends_with_slash = (
       url.endswith('/')
       and url != '/'
       and root_path
+      and url != root_path
       and url != root_path + '/'
-      and not url.startswith('/api')
+      and not url.startswith(root_path + '/api')
     )
     # ends_with_slash = url.endswith('/') and url != '/' and not url.startswith('/api')