Plack::Middleware::Expires(3) mod_expires for plack

SYNOPSIS


use Plack::Builder;
builder {
enable 'Expires',
content_type => qr!^image/!i,
expires => 'access plus 3 months';
$app;
}

DESCRIPTION

Plack::Middleware::Expires is Apache's mod_expires for Plack. This middleware controls the setting of Expires HTTP header and the max-age directive of the Cache-Control HTTP header in server responses.

Note:

  • Expires works only for successful response,
  • If an Expires HTTP header exists already, it will not be overridden by this middleware.

CONFIGURATIONS

content_type
  content_type => qr!^image!,
  content_type => 'text/css',
  content_type => [ 'text/css', 'application/javascript', qr!^image/! ]

Content-Type header to apply Expires

also "content_type" accept CodeRef 

  content_type => sub { my $env = shift; return 1 if $env->{..} }
Expires
Same format as the Apache mod_expires 

  expires => 'M3600' # last_modified + 1 hour
  expires => 'A86400' # access + 1 day
  expires => 'modification plus 3 years 3 month 3 day'
  expires => 'access plus 3 days'

AUTHOR

Masahiro Nagano <kazeburo {at} gmail.com>

LICENSE

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

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