private static AcmeClient BuildClient(Uri rootUrl = null, ISigner signer = null, string testTagHeader = null)
{
var c = new AcmeClient(rootUrl, signer: signer);
if (_proxy != null)
c.Proxy = _proxy;
if (testTagHeader != null)
c.BeforeGetResponseAction = x =>
{
x.Headers.Add("X-ACME-TestTag", testTagHeader);
};
LastAcmeClient = c;
return c;
}