Configuring API Gateway for CORS

OPTIONS handler #

The CORS request going from the web page to your API is going to be a bit more tricky. You’ll need to add an OPTIONS handler to the API and also change the response in your function to include the correct origin.

There are two ways of configuring OPTIONS handlers. The first is to add a Lambda function and an API endpoint. This would make it fully flexible, so you could dynamically calculate the right origin and ...