Hello,
I'm trying to use a public (i.e. non-Infor) API suite (https://www.frankfurter.app/docs/).
I have declared it in ION API Gateway.
And I've tested it - it returns correct results 

However, I've tried to integrate this API into a Flow API.
And when I test it again, I get an error message.


I can't figure out what settings I need to change to correct this malfunction, which is apparently linked to a security issue.
Thank you for your help.