The error message is as follows:
Mixed Content: The page at 'https://www.example.com' was loaded over HTTPS, but requested an insecure image ‘http://static.example.com/test.jpg’. This content should also be served over HTTPS.
Cause of the problem:
The browser uses the domain name https protocol to access the website, while the static file test.jpg uses the http protocol, resulting in mixed content.
Solution one:
Static files are also accessed using the https protocol. You need to configure the SSL certificate on the static nginx of the proxy. The domain name is static.example.com.
Solution two:
Most solutions on the Internet are to add it to the head part of the front end.
<meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests" />
Solution three: (recommended)
Without changing the front-end files, the configuration solution on the nginx access portal is as follows:
server {
listen 443;
server_name www.example.com;
#charset koi8-r;
error_log /logs/nginx/error.log;
root /var/www/www.example.com;
index index.php index.html index.htm;
ssl on;
ssl_certificate cert/test/test.pem;
ssl_certificate_key cert/test/test.key;
ssl_session_timeout 5m;
ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE:ECDH:AES:HIGH:!NULL:!aNULL:!MD5:!ADH:!RC4;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_prefer_server_ciphers on;
#
add_header X-Frame-Options deny;
add_header X-Content-Type-Options nosniff;
add_header X-XSS-Protection "1; mode=block";
add_header Strict-Transport-Security max-age=86400;
#关键部分
add_header Content-Security-Policy "upgrade-insecure-requests;default-src *;script-src 'self' https://static.example.com http://static.example.com 'unsafe-inline' 'unsafe-eval';style-src https://static.example.com http://static.example.com 'self' 'unsafe-inline';frame-src 'self';connect-src 'self';img-src https://static.example.com http://static.example.com data: blob: 'self'";
#最小配置
#add_header Content-Security-Policy "upgrade-insecure-requests;";
location / {
if (!-f $request_filename){
rewrite ^/(.*)$ /index.php?s=$1 last;
break;
}
limit_except GET POST DELETE PUT {
deny all;
}
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
# proxy the PHP scripts to Apache listening on 127.0.0.1:80
#
#location ~ \.php$ {
# proxy_pass http://127.0.0.1;
#}
# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
#
location ~ \.php$ {
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}
# deny access to .htaccess files, if Apache's document root
# concurs with nginx's one
#
location ~ /\.ht {
deny all;
}
}
The problem was successfully solved after restarting nginx
Solution four:
# 设置相对url重定向
absolute_redirect off;