Are double response headers supported in unity?

Server sends me back two Set-Cookie headers. However, when I debug all headers in unity only the last one is visible.

Is there a way to retrieve first Set-Cookie data?

Thanks

No, you cannot retrieve it. The data has already been lost by the time it gets to your code. reponseHeaders is a key value dictionary, only one value (the cookie data) can exist for each key (“Set-Cookie”).