设置让我们加密后网站重定向次数过多

Question

我已经设置 www.myapp.io 连接到由 nginx 托管的 MEAN-stack 应用程序。它有效，现在，我想添加 SSL 到它。我已关注 this link 以确保 let's encrypt。

然而，配置后，https://www.myapp.io 不工作：www.myapp.io redirected you too many times. ERR_TOO_MANY_REDIRECTS。

下面是/etc/nginx/sites-enabled/myapp.io，有谁知道哪里错了？

server {
    listen 80;
    server_name myapp.io www.myapp.io;
    return 301 https://$host$request_uri;
}

server {
    listen 443 ssl;

    server_name myapp.io www.myapp.io;

    ssl_certificate /etc/letsencrypt/live/myapp.io/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/myapp.io/privkey.pem;

    ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
    ssl_prefer_server_ciphers on;
    ssl_dhparam /etc/ssl/certs/dhparam.pem;
    ssl_ciphers 'ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:EC$
    ssl_session_timeout 1d;
    ssl_stapling on;
    ssl_stapling_verify on;
    add_header Strict-Transport-Security max-age=15768000;

    location ~ /.well-known {
        allow all;
    }

    location / {
        proxy_set_header    Host                $host;
        proxy_set_header    X-Forwarded-For     $proxy_add_x_forwarded_for;
        proxy_set_header    X-Forwarded-Proto   $scheme;
        proxy_set_header    Accept-Encoding     "";
        proxy_set_header    Proxy               "";
        proxy_pass          https://127.0.0.1:3000;
    }
}

（我没有放ssl_session_cache shared:SSL:50m;，因为/etc/nginx/nginx.conf里已经有ssl_session_cache shared:SSL:10m;了。）

添加 ssl 之前的配置文件，有效：

server {
    listen 80;
    server_name myopp.io *.myopp.io;

    location / {
        proxy_set_header    Host                $host;
        proxy_set_header    X-Forwarded-For     $proxy_add_x_forwarded_for;
        proxy_set_header    X-Forwarded-Proto   $scheme;
        proxy_set_header    Accept-Encoding     "";
        proxy_set_header    Proxy               "";
        proxy_pass          http://127.0.0.1:3000;
    }
}

PS: 该站点是通过 cloudflare 管理的，目前 clouldflare 上的 SSL 设置是Flexible,不知道要不要改

Answer 1

正如@dave_thompson_085 在他的评论中建议的那样，在 Cloudflare 中将 Flexible 更改为 Full 将使 https://www.myapp.io 可访问...

设置让我们加密后网站重定向次数过多

Site redirected too many times after setting let's encrypt

ssl

nginx

ssl-certificate

cloudflare

lets-encrypt