[Safari] Open Ui field with extension from different origin breaks Wicket Editor

Scenario:

1. In Hap add open ui field to any document type with point to "documentFieldExternalDemo". 
2. Try to save the document type.

Problem: Wicket editor is broken. Cannot save the document type and use any document baed on it. For instance xmas tree document already has point to open external field and it cannot be edited in Safari