--- a/net/http.lua	Tue Apr 03 00:08:30 2018 +0200
+++ b/net/http.lua	Fri Apr 06 01:42:35 2018 +0200
@@ -22,6 +22,7 @@
 local tonumber, tostring, xpcall, traceback =
       tonumber, tostring, xpcall, debug.traceback;
 local error = error
+local setmetatable = setmetatable;
 
 local log = require "util.logger".init("http");