Extbase/Fluid: Add possibility to set an "error action" for forms and links in MvC
Currently, if an action is called and the validation of a parameter fails,
errorAction of that controller is called. This action redirects to
the action, controller and plugin that rendered the form which was
This is often correct, but not always: For example, if a form is embedded
when rendering an unrelated view. If it is then submitted by AJAX and a
validation error occurs, the request should not be redirected to the
unrelated action which triggered the rendering of the form, but to a specific
This could be done by adding parameters
errorArguments to action URIs
(f:uri.action, f:link.action, f:form).
These parameters have the same semantics that the corresponding
_referrer values have. If one of them is missing, the value from the
_referrer is used as a default.