*) ngx_next_time()
*) expires daily time

consider log_not_found while testing index files

if upstream sent a location header without status use 302

allow several values in query string

the "Expect" header support

auto detect https redirect in rewrite

"gzip_vary on" always sends "Vary: Accept-Encoding" header

disable charset if there is "Content-Encoding" header

add args in redirect to a directory