nginx redirect loop with ssl

When nginx encounters a https protocol it thinks it is still using http as the protocol and is not being forwarded with the rest of the headers, try adding:

proxy_set_header        X-Forwarded-Proto $scheme;

in your location blocks to fix it.

I've toyed around with other answers but nothing worked for me. Then I realized since I use Cloudflare the problem may not be in the server but with Cloudflare. Lo and behold when I set my SSL to Full (Strict) everything works as it should!