When I use a browser (chromium or firefox) when accessing a page I get the expected results - 200 responses and it displays the information I was expecting.
When I use curl, I get a 302 response:
$ curl http://........./Home/Healthcheck
<html><head><title>Object moved</title></head><body>
<h2>Object moved to <a href="/Views/Shared/Error.aspx aspxerrorpath=/Home/Healthcheck">here</a>.</h2>
</body></html>