[views] Respond with 400 Bad Request in case of validation error in ajax request
Previously, we raised a plain RemoteCallFailed without a status code, in which
case it defaults to "500 Internal Server Error". Now, for validation
errors, we issue a 400 Bad Request since these are clearly client errors.
/*
* cubicweb js mock for unit tests
* This module defines variables and functions used in quite a few places
* in cw js framework that can't be used or guessed without a real CW server
*/
var pageid = 'my-page-id';
function _(message) {
return message;
}