Symptoms

ISSUE:
Anonymous Forms Access--setting the anonymous access option on a form and saving and checking it in doesn't necessarily work.
 

Diagnoses

Can be reproduced locally, by setting a Form with attachment control to allow anonymous access, clearing all cookies and uploading a file.
The issue seems to be that the FileHandler does not allow anonymous access.
 

Resolution

Addressed in an isolated fix for Appit. The fix entails allowing anonymous access forms to upload files be configurable.
After fix was applied, added andltadd key="Forms.Controls.File.AllowAnonymousAccess" value="true" /andgt to web.config file in designer and runtime folders.