From a69140ae1b767c23fb2663f2aa5b0975a1590398 Mon Sep 17 00:00:00 2001
From: Simon Li <orpheus+devel@gmail.com>
Date: Tue, 21 Dec 2021 23:26:45 +0000
Subject: [PATCH] Fix missing f-string modifier

---
 jupyterhub/apihandlers/base.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/jupyterhub/apihandlers/base.py b/jupyterhub/apihandlers/base.py
index 2542c825..b107bf64 100644
--- a/jupyterhub/apihandlers/base.py
+++ b/jupyterhub/apihandlers/base.py
@@ -88,7 +88,7 @@ class APIHandler(BaseHandler):
         ):
             self.log.warning(
                 f"Blocking Cross Origin API request.  Referer: {referer},"
-                " {host_header}: {host}, Host URL: {full_host}",
+                f" {host_header}: {host}, Host URL: {full_host}",
             )
             return False
         return True