node.js – NGINX浏览器缓存不工作 – 节点JS EC2
作者：互联网
经历了几篇文章,但无法弄清楚为什么浏览器缓存不起作用.我正在使用prerender.io以及SSL：
gzip on;
gzip_min_length 500;
gzip_proxied any;
gzip_comp_level 4;
gzip_types text/css text/javascript text/xml text/plain text/x-component application/javascript application/json application/xml application/rss+xml font/truetype font/opentype application/vnd.ms-fontobject image/svg+xml;
gzip_vary on;
gzip_disable "msie6";
server {
listen 8080 default_server;
listen [::]:8080 default_server;
server_name <servername> www.<servername>.com;
return 301 https://$server_name$request_uri;
}
server {
listen 443 ssl http2 default_server;
server_name <servername> www.<servername>.com;
ssl_certificate /etc/pki/tls/private/<servername>.com.chained.crt;
ssl_certificate_key /etc/pki/tls/private/private.key;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_prefer_server_ciphers on;
ssl_ciphers <ssl_ciphers_code>
ssl_session_cache shared:SSL:5m;
ssl_session_timeout 1h;
add_header Strict-Transport-Security "max-age=15768000" always;
root /var/app/current;
location / {
proxy_set_header X-Prerender-Token iKJwgCElYIfxtt9u99Zg;
set $prerender 0;
if ($http_user_agent ~* "baiduspider|twitterbot|facebookexternalhit|rogerbot|linkedinbot|embedly|quora link preview|showyoubot|outbrain|pinterest|slackbot|vkShare|W3C_Validator") {
set $prerender 1;
}
if ($args ~ "_escaped_fragment_") {
set $prerender 1;
}
if ($http_user_agent ~ "Prerender") {
set $prerender 0;
}
if ($uri ~* "\.(js|css|xml|less|png|jpg|jpeg|gif|pdf|doc|txt|ico|rss|zip|mp3|rar|exe|wmv|doc|avi|ppt|mpg|mpeg|tif|wav|mov|psd|ai|xls|mp4|m4a|swf|dat|dmg|iso|flv|m4v|torrent|ttf|woff|svg|eot)") {
set $prerender 0;
}
#resolve using Google's DNS server to force DNS resolution and prevent caching of IPs
resolver 8.8.8.8;
if ($prerender = 1) {
#setting prerender as a variable forces DNS resolution since nginx caches IPs and doesnt play well with load balancing
set $prerender "service.prerender.io";
rewrite .* /$scheme://$host$request_uri? break;
proxy_pass http://$prerender;
}
# Proxy_pass configuration
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;
proxy_set_header X-NginX-Proxy true;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
proxy_max_temp_file_size 0;
proxy_pass http://0.0.0.0:3000;
proxy_redirect off;
proxy_read_timeout 240s;
}
location ~* \.(ico|css|js|gif|jpeg|jpg|png|woff|ttf|otf|svg|woff2|eot)${
root /var/app/current/app/dist/client/; #if i comment this out it, my css and js files are not found...
expires 30d;
access_log off;
log_not_found off;
add_header Pragma "public";
add_header Cache-Control "public";
}
# Increase http2 max sizes
http2_max_field_size 64k;
http2_max_header_size 64k;
client_max_body_size 4G;
keepalive_timeout 10;
}
我的资产目录如下：
JS：/ var / app / current / app / dist / client / js
CSS：/ var / app / current / app / dist / client / assets / css
图片：/ var / app / current / app / dist / client / assets / graphics
字体：/ var / app / current / app / dist / client / assets / fonts
视频：/ var / app / current / app / dist / client / assets / videos
更新配置：
gzip on;
gzip_min_length 500;
gzip_proxied any;
gzip_comp_level 4;
gzip_types text/css text/javascript text/xml text/plain text/x-component application/javascript application/json application/xml application/rss+xml font/truetype font/opentype application/vnd.ms-fontobject image/svg+xml;
gzip_vary on;
gzip_disable "msie6";
server {
listen 8080 default_server;
listen [::]:8080 default_server;
server_name <servername.com> <www.servername.com>;
return 301 https://$server_name$request_uri;
}
server {
listen 443 ssl http2 default_server;
server_name <servername.com> <www.servername.com>;
ssl_certificate /etc/pki/tls/private/<servername>.com.chained.crt;
ssl_certificate_key /etc/pki/tls/private/private.key;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_prefer_server_ciphers on;
ssl_ciphers <ciphers>;
ssl_session_cache shared:SSL:5m;
ssl_session_timeout 1h;
add_header Strict-Transport-Security "max-age=15768000" always;
root /var/app/current;
location / {
proxy_set_header X-Prerender-Token <token> ;
set $prerender 0;
if ($http_user_agent ~* "developers\.google\.com|googlebot|gigabot|yeti|yandex|ia_archiver|baiduspider|twitterbot|facebookexternalhit|rogerbot|linkedinbot|embedly|quora link preview|showyoubot|outbrain|pinterest|slackbot|vkShare|W3C_Validator") {
set $prerender 1;
}
if ($args ~ "_escaped_fragment_") {
set $prerender 1;
}
if ($http_user_agent ~ "Prerender") {
set $prerender 0;
}
if ($uri ~* "\.(js|css|xml|less|png|jpg|jpeg|gif|pdf|doc|txt|ico|rss|zip|mp3|rar|exe|wmv|doc|avi|ppt|mpg|mpeg|tif|wav|mov|psd|ai|xls|mp4|m4a|swf|dat|dmg|iso|flv|m4v|torrent|ttf|woff|svg|eot)") {
set $prerender 0;
}
#resolve using Google's DNS server to force DNS resolution and prevent caching of IPs
resolver 8.8.8.8;
if ($prerender = 1) {
#setting prerender as a variable forces DNS resolution since nginx caches IPs and doesnt play well with load balancing
set $prerender "service.prerender.io";
rewrite .* /$scheme://$host$request_uri? break;
proxy_pass http://$prerender;
}
# Proxy_pass configuration
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;
proxy_set_header X-NginX-Proxy true;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
proxy_max_temp_file_size 0;
proxy_pass http://0.0.0.0:3000;
proxy_redirect off;
proxy_read_timeout 240s;
}
location ~* \.(ico|css|js|gif|jpeg|jpg|png|woff|ttf|otf|svg|woff2|eot)${
root /var/app/current/app/dist/client/; #if i comment this out it, my css and js files are not found...
expires 30d;
access_log off;
log_not_found off;
add_header Pragma "public";
add_header Cache-Control "public";
}
location /assets/graphics/ {
proxy_ignore_headers Cache-Control;
proxy_cache_valid any 30d;
}
# Increase http2 max sizes
proxy_buffers 8 16k;
proxy_buffer_size 32k;
http2_max_field_size 64k;
http2_max_header_size 64k;
client_max_body_size 4G;
keepalive_timeout 10;
}
解决方法:
在NGINX配置中,使用以下行为您的图像设置缓存到期时间为30天：
expires 30d;
但是,查看来自服务器的图像,图像的最大年龄设置为0,这会导致浏览器在刷新时重新拉动图像(下图是刷新后的图像)：
我怀疑NGINX是作为解决方案一部分的源服务器的代理.此源服务器在缓存控制头中将max-age设置为0,NGINX正在遵循该设置.
By default, NGINX respects the Cache-Control headers from origin servers. It does not cache responses with Cache-Control set to Private, No-Cache, or No-Store or with Set-Cookie in the response header. NGINX only caches GET and HEAD client requests.
要覆盖原始服务器上的缓存控制集并将max-age设置为30d,请使用NGINX proxy_ignore_headers和proxy_cache_valid指令,如下所示：
...
location /assets/graphics/ {
proxy_ignore_headers Cache-Control;
proxy_cache_valid any 30d;
...
}
...
我的解决方案中的代码直接从NGINX caching guide获取并修改为您的配置.
或者确定如何更改源服务器上的缓存控制标头.
UPDATE
更新NGINX配置后,/ assets / graphics /目录中的图像将从本地浏览器内存中提取,并且有效期为30天(2595200),如下所示.昨天,他们都被从你的服务器中拉出来而没有被缓存.此解决方案可以解决您的问题.对于要缓存的其他资产,您需要进一步更改配置,以便根据您的要求缓存这些资产.
标签：caching,nginx,node-js,amazon-ec2,browser-cache 来源： https://codeday.me/bug/20190828/1747095.html