How to Specify “Vary: Accept-Encoding” header in .htaccess

Question

Google PageSpeed says I should \"Specify a Vary: Accept-Encoding header\" for JS and CSS. How do I do this in .htaccess?

Answer 1

No need to specify or even check if the file is/has compressed, you can send it to every file, On every request.

It tells downstream proxies how to match future request headers to decide whether the cached response can be used rather than requesting a fresh one from the origin server.

  Header unset Vary
  Header set Vary "Accept-Encoding, X-HTTP-Method-Override, X-Forwarded-For, Remote-Address, X-Real-IP, X-Forwarded-Proto, X-Forwarded-Host, X-Forwarded-Port, X-Forwarded-Server"

• the unset is to fix some bugs in older GoDaddy hosting, optionally.