retry-after can only be specified once.

ioquatix · ioquatix · commit 99ffa4a5c636 · 2024-11-26T18:19:07.000+13:00
diff --git a/lib/protocol/http/headers.rb b/lib/protocol/http/headers.rb
@@ -212,6 +212,7 @@ def []= key, value
 				"from" => false,
 				"location" => false,
 				"max-forwards" => false,
+				"retry-after" => false,
 				
 				# Custom headers:
 				"connection" => Header::Connection,
