Kiln uses Cocoon’s built-in error handling mechanism. It provides two
levels of handling. The first, defined in
makes use of the templating system to provide error messages that
display in the style of the site. The second, defined in
sitemaps/config.xmap, is untemplated, and used only if there is a
problem with the code used in the first level error-handling.
Both levels will display all of the technical details Cocoon makes
available when the global variable
debug is set to “1”, and hidden
when it is set to “0”.
Error messages can be overridden if desired; this is already done for
404 errors, for which see