Plack::Middleware::ContentLength − Adds Content−Length header automatically
# in app.psgi
builder {
enable "Plack::Middleware::ContentLength";
$app;
}
# Or in Plack::Handler::*
$app =
Plack::Middleware::ContentLength−>wrap($app);
Plack::Middleware::ContentLength is a middleware that automatically adds "Content−Length" header when it’s appropriate i.e. the response has a content body with calculable size (array of chunks or a real filehandle).
This middleware can also be used as a library from PSGI server implementations to automatically set "Content−Length" rather than in the end user level.
Tatsuhiko Miyagawa
Rack::ContentLength