[web] implement cross origin resource sharing (CORS) (closes #2491768)
Partial implementation that is enough to get started but leaves out
some of the advanced features like caching and non-simple methods
and headers.
The View system
===============
This chapter aims to describe the concept of a `view` used all along
the development of a web application and how it has been implemented
in |cubicweb|.
.. toctree::
:maxdepth: 3
views
basetemplates
primary
reledit
baseviews
startup
boxes
table
xmlrss
urlpublish
breadcrumbs
idownloadable
wdoc
.. editforms
.. embedding