Plack::Middleware::ConditionalGET(3) Middleware to enable conditional GET


builder {
enable "ConditionalGET";


This middleware enables conditional GET and HEAD using "If-None-Match" and "If-Modified-Since" header. The application should set either or both of "Last-Modified" or "ETag" response headers per RFC 2616. When either of the conditions is met, the response body is set to be zero length and the status is set to 304 Not Modified.