The HTTP state (@hs) object could be replaced in proxy_wait_next
causing @hs.env['rack.logger'] to become inaccessible.
---
 lib/yahns/proxy_http_response.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/yahns/proxy_http_response.rb b/lib/yahns/proxy_http_response.rb
index a37b387..74f5ce5 100644
--- a/lib/yahns/proxy_http_response.rb
+++ b/lib/yahns/proxy_http_response.rb
@@ -46,7 +46,7 @@ def proxy_write(wbuf, buf, req_res)
   end
 
   def proxy_err_response(code, req_res, exc)
-    logger = @hs.env['rack.logger']
+    logger = self.class.logger # Yahns::HttpContext#logger
     case exc
     when nil
       logger.error('premature upstream EOF')
-- 
EW

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