Hello,<div><br></div><div>I'm doing SSL termination in nginx, and I'd like to set a header such as "X-Sheme https" ONLY if X-Scheme is not set. The reason is because an upstream load balancer may have terminated SSL as well, and I don't want to overwrite that value.</div>
<div><br></div><div>Is this possible?</div><div><br></div><div>Best,</div><div>Mitchell</div>