Hi,
I had a problem accessing https address with fetch on my own server, then I tried several public API with https address and found out that some of them resulting an empty object
There are several sites that not working with the fetch API in fusetools
https://vatapi.com/v1/country-code-check
https://bikewise.org/api/v2/incidents
https://api.fidigo.com/api/users/serverkey
At first I thought that this has something to do with certificate since those address is using Comodo Positive SSL as mine. After another test with different address, I found that there are address with Comodo Positive SSL that working fine, then I redirect my suspicion to the server configuration
I use HAProxy in front of two NodeJS server, and put SSL on the HAProxy side. Then I tried to remove the HAProxy and enable SSL directly on the NodeJS, and the fetch is working. And then I put back the HAProxy now with HAProxy just TCP forwarding and SSL is installed on each nodeJS server, and it’s work 
I cannot conclude the root cause of this issue, but maybe this has something to do with the server side configuration. I hope you can find the root cause or at least a workaround how to configure the server to be compatible with the fetch API
Thanks
