Trying to limit field access throuhg workflow

[Guido1982]

Every change triggers a call to "index.php?module=Utilities&action=UtilitiesAjax&file=ExecuteFunctions&functiontocall=ValidationExists&valmodule=SalesOrder". But no actual result. No message in the console aswell.. Don't know what's going on. Filename is "SalesOrderValidation.php", code is as in previous post, but no dice...

EDIT
Interesting fact. Clicking the link in the console just returns the word "no". Did the same in Accounts, that returned "yes".