CORS Support

[singh1469]

Is CORS actually supported by this repo ?, because my CORS requests straight from the browser are not being honoured.

Use Case
I'm using the apostle.js repo together with superagent to deliver email. This is a CORS request directly from the browser.

Code

function testApostle(){
    apostle.domainKey = 'my-key-here';
    apostle.deliver('template_name', {
        email: '[email protected]'
    });
}

superagent throws the following error:
XMLHttpRequest cannot load https://deliver.apostle.io/. Request header field Apostle-Client is not allowed by Access-Control-Allow-Headers.

Superagent
Superagent requires all CORS request to adhere to the following:
The .withCredentials() method enables the ability to send cookies from the origin, however only when "Access-Control-Allow-Origin" is not a wildcard ("*"),
Reference - superagent

The network request initiated by Apostle.io and executed by superagent returns the following header (amongst others) from https://delivery.apostle.io:
Access-Control-Allow-Origin:*

Is this a known issue?
is the Apostle.io library therefore not CORS compatible?

[snikch]

Cors is supported, but it looks like an extra header that was added in to identify requests is preventing it from working as expected. We'll get the Apostle-Client header added to Access-Control-Allow-Headers and comment here when complete.

[snikch]

Ok, the deliver endpoint should now accept the Apostle-Client header for CORS requests. Let me know how it goes!

[singh1469]

Fixed. Thank you very much.