Access-Control-Allow-Origin for Dev server

[jogibear9988]

Would it be possible to enable this? or create a switch

[LarsDenBakker]

The server is based on koa, you can add koa middleware to do anything you like. There is also an express to koa converter for express plugins. You can read more about koa here: https://koajs.com/

[rhashimoto]

I created a pull request for the docs that adds an example of how to (mis)use the transform hook to send custom HTTP headers.