Hello,
First of all, thank you for the amazing API. :)
I have a small request which is to include the OPTIONS API method in your setup.
The browsers (or maybe just Chrome?) now do an OPTIONS request before every request generated from an HTTPS to HTTPS cross domain request.
Here's an example: https://i.imgur.com/lglWqpH.png
And here's the issue explained: https://stackoverflow.com/a/13030629/2301842