[web] stop looking at a request's Cache-Control header
As per RFC 7234 (HTTP 1.1 Caching):
The "Cache-Control" header field is used to specify directives for
caches along the request/response chain.
CubicWeb is not a cache.
Schema of the data
------------------
First take a look at the data schema_ then try to remember that you are browsing
through a heap of data by applying stylesheets to the results of queries. This
site is not a content management system with items placed in folders. It is an
interface to a database which applies a view to retreived data.
.. _schema: ../schema