Plack::Middleware::ConditionalGET - Middleware to add "conditional", GET
builder { enable "Plack::Middleware::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.
If-None-Match
If-Modified-Since
Last-Modified
ETag
Rack::ConditionalGet
To install Plack, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Plack
CPAN shell
perl -MCPAN -e shell install Plack
For more information on module installation, please visit the detailed CPAN module installation guide.