public function serveStaticFile($staticFilePath, $sitePath, $siteName, $uri)
{
/**
* Back story...
*
* PHP docs *claim* you can set default_mimetype = "" to disable the default
* Content-Type header. This works in PHP 7+, but in PHP 5.* it sends an
* *empty* Content-Type header, which is significantly different than
* sending *no* Content-Type header.
*
* However, if you explicitly set a Content-Type header, then explicitly
* remove that Content-Type header, PHP seems to not re-add the default.
*
* I have a hard time believing this is by design and not coincidence.
*
* Burn. it. all.
*/
header('Content-Type: text/html');
header_remove('Content-Type');
/**
* Tell Caddy to handle the static file itself, using it's `internal` feature.
*/
header('X-Accel-Redirect: ' . $staticFilePath);
}