Steps to reproduce:

1. Log in to back office.
2. Go to Product catalog / Attribute groups or Product types.
3. Start creating new Attribute group or Product type.
4. Verify web browser console output.

Actual result:

Watch gif please: https://recordit.co/Mzw4VbHHDt

JS exception occurs while new Product type and Attribute group is added.

Expected result:

No exception occurs.