In some cases the HTTP::Cookies module does not delete cookies [rt.cpan.org #84712]

Migrated from rt.cpan.org#84712 (status was 'new')

Requestors:

• KNI@cpan.org

Attachments:

• client.pl
• server.pl

From kni@cpan.org on 2013-04-18 06:55:30:

Hi,

In some cases the HTTP::Cookies module does not delete cookies.
Here is the issue in detail:

- when the foo.com URL is requested the "Cookie_check=1" cookie is set
- then server redirects us to pass.foo.com
- while requesting pass.foo.com the "Cookie_check=" cookie is set 
- then server redirects us to ok.foo.com

On each step the server displays the STDOUT cookie.

Please view the examples of requests for w3m browser and LWP client (client.pl):


> tail -n 3 /etc/hosts
127.0.0.1 foo.com
127.0.0.1 pass.foo.com
127.0.0.1 ok.foo.com



> perl server.pl



> w3m -dump http://foo.com:8080
Received cookie: Cookie_check=1
Received cookie: Cookie_check=
Hello


> perl client.pl
Hello




> perl server.pl
undef at server.pl line 23.
Cookie_check=1 at server.pl line 29.
undef at server.pl line 35.
======
undef at server.pl line 23.
Cookie_check=1 at server.pl line 29.
Cookie_check=1 at server.pl line 35.
======

Sincerely,
Nick Kostyria

Start by reviewing the attached client.pl and server.pl examples and reproduce the foo.com to pass.foo.com to ok.foo.com redirect sequence. Compare the HTTP::Cookies behavior with the displayed w3m and LWP outputs; done means the client no longer retains Cookie_check=1 after the empty cookie is set.