Steps to reproduce:
- Go to Content > Forms
- Go to Data Providers
- Add a Data Provider
- URL: http://restcountries.eu/rest/v2/all
- Output parameters: name - Country, path - $.*.name, type - list
- Add a Form
- Add select field with data provider configured before
- Save and publish form
- Click on select field
All countries are listed.
No result is shown. Data provider times out and Forms circuit breaker prevents it from rendering due to small default timeout.