paymentsAppConfigure Mutation responded with { errors: 'SSL required' } Status: 403

[rahulk7]

I have also tried content-type header to application/json but no luck!.
Could you please suggest to resolve the issue.

[rahulk7]

The issue is resolved when I changed the corporate proxy protocol to https instead of using http and I have changed the request header content-type to 

 'Content-Type': 'application/json'.