Can HttpClient's reponse Content be null?

When getting a HttpResponseMessage from HttpClient, are there any cases where its Content may be null?

HttpClient client = new HttpClient();
HttpResponseMessage response = await client.GetAsync("https://www.stackoverflow.com/");
if (response.Content == null) {
    // Can this happen?
}
else
{
    string responseBody = await response.Content.ReadAsStringAsync();
    // ...
}

If you think it can be null, please provide an example to reproduce it.

I have tried many things, but without being able to get null:

╔═══════════════════════╦═════════════════════════════════╦═══════════════════════╗
║        Request        ║            Response             ║        Content        ║
╠═══════════════════════╬═════════════════════════════════╬═══════════════════════╣
║ GET  http             ║ 200 OK, a response              ║ The response          ║
║ GET  http             ║ 200 OK, empty response          ║ Empty string          ║
║ GET  http             ║ 204 No Response, empty response ║ Empty string          ║
║ GET  http             ║ 400 Bad Request, a response     ║ The response          ║
║ GET  http             ║ 400 Bad Request, empty response ║ Empty string          ║
║ GET  http             ║ 500 Bad Request, empty response ║ Empty string          ║
║ HEAD http             ║ 200 OK, empty response          ║ Empty string          ║
║ OPTIONS http          ║ 200 OK, empty response          ║ Empty string          ║
║ GET  http, bad DNS    ║ (never hit)                     ║ HttpRequestException  ║
║ GET  http, bad scheme ║ (never hit)                     ║ ArgumentException     ║
║ GET  http             ║ Never respond                   ║ TaskCanceledException ║
╚═══════════════════════╩═════════════════════════════════╩═══════════════════════╝