Vary: Accept-Encoding header

[eva2000]

Must be pretty old considering the list of browsers that support gzip.

[user3011]

eva2000,

Ever try facebook advertising. Try removing forcing this vary header. See the difference in traffic you acquire in next few days vs with vary header.

[eva2000]

I haven’t really seen how very old browsers handle gzip as if it’s that old, then other stuff supported like HTTPS SNI, HTTP/2, HTTP/3, TLSv1.2/TLSv1.3 and CF free universal ssl’s ECC 256bit ECDSA based SSL certificates would probably not work either ?

And with alot of sites and services deprecating TLSv1.0 and TLSv1.1 soon, that would leave very old browsers out in the cold.

Effectively, you’d have more important issues to worry about for such very old web browsers, than whether or not it supported gzip