This is only reproducible in 7.0.x.
1. Start a clean bundle of Liferay DXP 7.0 installed with de-57
2. Go to Content --> Forms and create a new form
3. Deploy the Forms portlet to a page
4. Open the browser console
5. Display the form you created in the forms portlet
Expected Result: Suppress the message that appears in the browser console when form is displayed
Actual Result: browser console message displays when form is displayed.