Validating File Extensions, Toolkit 1.0 and UE4.01
I have a form where I am using UE4's file attachment feature and am trying to validate the variable [File Name] for 2 file upload form fields using the server-side validation File Extension. I applied the validation to both fields to restrict files to be jpegs or PDFs, but regardless of what kind of file I upload, everything goes through and I receive the attached files via email. If I apply a Show If behavior to the fields, they always fail and neither the files or emails are sent.
At present the form is working through UE4 and other errors are validating correctly, but since any file can be attached this represents a security risk. Let me know what you need from me to help solve this problem.