Why Request Method:OPTIONS is required?

[gormonn]

Each request is duplicated with "request method: OPTIONS", why?
And how to disable it?

[lexich]

Hi @gormonn
Show your redux-api config and how do you use redux-api in your app?

[grahaml]

I doubt this has anything to do with the library. This is the standard behaviour for CORS. If your API is on a different domain than your client-side application (eg. myapplication.com is trying to request data from myapi.com), then the browser sends a pre-flight request (the OPTIONS request you are seeing) to determine whether or not the request your application wants to make will be accepted by the API.

Have a look at MDN for a good explanation: https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS#Preflighted_requests

This is a security measure that the browser implements, and as far as I know there is no way to disable it.