1.6.3  fix output with content length header 

 Whats Changed
 fix output with content length header by @Kanti in https://github.com/Kanti/server-timing/pull/34


Full Changelog: https://github.com/Kanti/server-timing/compare/1.6.2...1.6.3

https://github.com/Kanti/server-timing/releases/tag/1.6.3