I have a web server running the latest lighttpd code. The configuration uses setenv.set-response-header but the output is different than expected.
A simplified version of the configuration is shown below. All the redirects and rewrites work as configured, but the resulting response does not have the cache-control header set to match.
I've tried nesting with else, making a flat configuration, moving the set to higher/lower tiers. Nothing so far has produced the result I was expecting.
Suggestions gratefully received!
$HTTP["request-method"] == "GET" {
server.document-root = "/var/www/"
$HTTP["url"] == "/a" {
setenv.set-response-header = (
"Cache-Control" => "no-cache, no-store, must-revalidate"
)
url.rewrite-once = ( "" => "" )
} else {
$HTTP["url"] == "/b" {
$REQUEST_HEADER["x"] =~ "y" {
setenv.set-response-header = (
"Cache-Control" => "max-age=60, must-revalidate"
)
url.rewrite-once = ( "" => "" )
} else {
setenv.set-response-header = (
"Cache-Control" => "max-age=60, must-revalidate"
)
url.rewrite-once = ( "" => "" )
}
} else {
$HTTP["url"] == "/c" {
$REQUEST_HEADER["x"] =~ "y" {
url.redirect = ( "" => "" )
} else {
setenv.set-response-header = (
"Cache-Control" => "max-age=60, must-revalidate"
)
url.rewrite-once = ( "" => "" )
}
} else {
$HTTP["url"] == "/d" {
setenv.set-response-header = (
"Cache-Control" => "max-age=60, must-revalidate"
)
url.rewrite-once = ( "" => "" )
}
}
}
}
}
If the URL is rewritten using url.rewrite-once, then that target URL is what lighttpd uses as the request. When lighttpd serves that request, lighttpd generates a response. Once the response is generated, that is when setenv.set-response-header is applied.
$HTTP["url"] == "/rewrite-target" {
setenv.set-response-header = (
"Cache-Control" => "max-age=60, must-revalidate"
)
}
The target resource is to what the caching headers apply, not to the original request which was rewritten. Your current placement of setenv.set-response-header is not used because those are not the target resource. The target resource is the resource after the url.rewrite-once.