console 出现了一个 error: the server responded with a status of 404

[kmdd33]

搞了一天还没有搞定，真的头疼， google 也不行。先上贴图：

chrome ： https://cl.ly/132h1I2P2U3i

firefox ： https://cl.ly/2T3p0X100P3K

network 截图（登陆页面）： https://cl.ly/2H3T3C3d3i3e

cloudflare 的 301 重定向设置截图： https://cl.ly/0n0T003Z1t28


错误显示： Failed to load resource: the server responded with a status of 404 ()


firefox 显示 4 个升级 http 到 https 的请求，我应该如何升级呢？我添加了 add_header Content-Security-Policy upgrade-insecure-requests;这样操作对吗？


自己一开始为了消除 mixed contents 错误，把 nginx 里面的 nginx.conf 的 server ｛｝中添加


server { ...

add_header Content-Security-Policy upgrade-insecure-requests;

...}

请伙伴们指导
环境状态：用了 cloudflare 的 cdn 、 ssl 和 301 重定向。

自己的 nginx.conf 的配置如下：

user www www;

worker_processes auto;

error_log /home/wwwlogs/nginx_error.log crit;

pid /usr/local/nginx/logs/nginx.pid;

#Specifies the value for maximum file descriptors that can be opened by this process.
worker_rlimit_nofile 51200;

events
{
use epoll;
worker_connections 51200;
multi_accept on;
}

http
{
map $http_cf_ipcountry $allow {
default yes;
CN yes;
RU no;
US yes;
}
include mime.types;
default_type application/octet-stream;
server_names_hash_bucket_size 128;
client_header_buffer_size 32k;
large_client_header_buffers 4 32k;
client_max_body_size 50m;

sendfile on;
tcp_nopush on;

keepalive_timeout 60;

tcp_nodelay on;

fastcgi_connect_timeout 300;
fastcgi_send_timeout 300;
fastcgi_read_timeout 300;
fastcgi_buffer_size 64k;
fastcgi_buffers 4 64k;
fastcgi_busy_buffers_size 128k;
fastcgi_temp_file_write_size 256k;

gzip on;
gzip_min_length 1k;
gzip_buffers 4 16k;
gzip_http_version 1.1;
gzip_comp_level 2;
gzip_types text/plain application/javascript application/x-javascript text/javascript text/css application/xml application/xml+rss;
gzip_vary on;
gzip_proxied expired no-cache no-store private auth;
gzip_disable "MSIE [1-6]\.";

#limit_conn_zone $binary_remote_addr zone=perip:10m;
##If enable limit_conn_zone,add "limit_conn perip 10;" to server section.

server_tokens off;
access_log off;

server
{
if ($allow = no) {
return 403;
}
location / {

add_header 'Access-Control-Allow-Origin' 'https://www.mydomain.com';
}


add_header Content-Security-Policy upgrade-insecure-requests;
add_header 'Access-Control-Allow-origin' 'https://www.mydomain.com';
add_header 'Access-Control-Allow-Methods' 'GET, POST';
# Cross domain webfont access
location = /favicon.ico { log_not_found off; access_log off; }

location = /robots.txt { log_not_found off; access_log off; allow all; }

location ~* .(ogg|ogv|mp4|css|rss|atom|js|jpg|jpeg|gif|png|ico|zip|tgz|gz|rar|bz2|doc|xls|exe|ppt|tar|mid|midi|wav|bmp|rtf)$ {
add_header "Access-Control-Allow-Origin" "https://www.mydomain.com";
add_header "Timing-Allow-Origin" "*";
add_header X-Content-Type-Options nosniff;
add_header X-XSS-Protection "1; mode=block";
expires max;
log_not_found off;
}

location ~* .(ttf|ttc|otf|eot|woff|woff2|svg|svgz)$ {
add_header "Access-Control-Allow-Origin" "https://www.mydomain.com";
add_header "Timing-Allow-Origin" "*";
add_header Strict-Transport-Security "max-age=63072000; includeSubDomains; preload";
add_header X-Content-Type-Options nosniff;
add_header X-XSS-Protection "1; mode=block";
expires max;
log_not_found off;
}

listen 80 default_server;
listen 443 default_server;
#listen [::]:80 default_server ipv6only=on;
server_name www.mydomain.com;
index index.html index.htm index.php;
root /home/wwwroot/default;

#error_page 404 /404.html;
include enable-php.conf;

location /nginx_status
{
stub_status on;
access_log off;
}

location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$
{
expires 30d;
}

location ~ .*\.(js|css)?$
{
expires 12h;
}



location ~ /\.
{
deny all;
}


access_log /home/wwwlogs/access.log;
}
include vhost/*.conf;
}


nginx 里面的 error.log 显示的大量错误如下：


2017/03/27 11:41:01 [warn] 6809#0: conflicting server name "www.mydomain.com" on 0.0.0.0:80, ignored
2017/03/27 11:45:08 [warn] 6820#0: conflicting server name "www.mydomain.com" on 0.0.0.0:80, ignored
2017/03/27 11:45:08 [notice] 6820#0: signal process started
2017/03/27 11:45:09 [warn] 6825#0: conflicting server name "www.mydomain.com" on 0.0.0.0:80, ignored
2017/03/27 11:54:17 [warn] 6835#0: conflicting server name "www.mydomain.com" on 0.0.0.0:80, ignored
2017/03/27 11:54:17 [notice] 6835#0: signal process started
2017/03/27 11:54:18 [warn] 6840#0: conflicting server name "www.mydomain.com" on 0.0.0.0:80, ignored
2017/03/27 12:34:38 [emerg] 6925#0: duplicate location "/" in /usr/local/nginx/conf/nginx.conf:129
2017/03/27 12:44:33 [emerg] 6940#0: duplicate location "/" in /usr/local/nginx/conf/nginx.conf:129
2017/03/27 12:58:01 [emerg] 6953#0: duplicate location "/" in /usr/local/nginx/conf/nginx.conf:131
2017/03/28 05:22:28 [emerg] 7367#0: duplicate location "/" in /usr/local/nginx/conf/nginx.conf:155
2017/03/28 05:26:29 [emerg] 7381#0: duplicate location "/" in /usr/local/nginx/conf/nginx.conf:155
2017/03/28 05:57:23 [warn] 7394#0: conflicting server name "www.mydomain.com" on 0.0.0.0:80, ignored
2017/03/28 05:57:23 [notice] 7394#0: signal process started
2017/03/28 05:57:24 [warn] 7399#0: conflicting server name "www.mydomain.com" on 0.0.0.0:80, ignored
2017/03/28 05:58:27 [warn] 7409#0: conflicting server name "www.mydomain.com" on 0.0.0.0:80, ignored

[kmdd33]

error.log 里面的错误是什么意思