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link to the cookbook article on avoiding to start a session #4964

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Feb 14, 2015
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link to the cookbook article on avoiding to start a session #4964

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9 changes: 4 additions & 5 deletions cookbook/cache/varnish.rst
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Expand Up @@ -72,11 +72,10 @@ If you know for sure that the backend never uses sessions or basic
authentication, have varnish remove the corresponding header from requests to
prevent clients from bypassing the cache. In practice, you will need sessions
at least for some parts of the site, e.g. when using forms with
:ref:`CSRF Protection <forms-csrf>`. In this situation, make sure to only
start a session when actually needed, and clear the session when it is no
longer needed. Alternatively, you can look into :doc:`../cache/form_csrf_caching`.

.. todo link "only start a session when actually needed" to cookbook/session/avoid_session_start once https://github.com/symfony/symfony-docs/pull/4661 is merged
:ref:`CSRF Protection <forms-csrf>`. In this situation, make sure to
:doc:`only start a session when actually needed </cookbook/session/avoid_session_start>`
and clear the session when it is no longer needed. Alternatively, you can look
into :doc:`/cookbook/cache/form_csrf_caching`.

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