Get network.request response headers

Hi! I’m using network.request like this:
network.request( fullUrl, "POST", networkListener, params)

and receiving the response in my network listener as such:

local function networkListener( event )
        if ( event.isError ) then
            response = {};
        else
            print(event.response)
            response = json.decode(event.response);
        end
    end

I am receiving the body response of the request but I want to receive the request’s response headers as well. How can I achieve this?

Thanks a lot!