Nginx 圖像頭記憶體未更新

我在https://www.example.com/img/bart-had-a-groove.gif有一個圖像文件

這是我站點配置中唯一的記憶體塊，全域 nginx.conf 中沒有記憶體設置。

location ~* \.(?:jpg|jpeg|gif|png|ico|cur|gz|svg|svgz|mp4|ogg|ogv|webm|htc)$ {
 expires 1M;
 access_log off;
 add_header Cache-Control "public, no-transform, max-age=2628000";
}

現在，您可以看到我的標題設置為Cache-Control "public, no-transform, max-age=2628000";，但是如果您將圖像捲曲，例如curl -X GET -I https://www.example.com/img/bart-had-a-groove.gif您會得到：

HTTP/1.1 200 OK
Content-Type: image/gif
Connection: keep-alive
Server: nginx/1.13.9
Content-Length: 771510
Last-Modified: Fri, 17 Feb 2017 17:26:23 GMT
ETag: "58a7323f-bc5b6"
Pragma: public
Cache-Control: public
Accept-Ranges: bytes
Date: Mon, 19 Mar 2018 21:49:33 GMT
Expires: Wed, 18 Apr 2018 21:49:33 GMT

您可以看到Cache-Control: public與配置不匹配。它缺少了no-transform, max-age=2628000一部分。

systemctl stop nginx && systemctl start nginx && systemctl reload nginx每次改變我都會跑。

更新 伺服器塊的其餘部分：

server {
 listen 80;
 listen 443;
 server_name example.com;
 return 301 https://www.$server_name$request_uri;
}

server {
 listen 80;
 listen 443 ssl http2;
 root /var/www/example.com/htdocs/;

 index index.html index.htm;

 server_name www.example.com;

 location / {
   autoindex on;
   try_files $uri $uri/ =404;    
 }

 location ~ \.php$ {
   fastcgi_split_path_info ^(.+?\.php)(|/.*)$;
   # Security note: If you're running a version of PHP older than the
   # latest 5.3, you should have "cgi.fix_pathinfo = 0;" in php.ini.
   # See http://serverfault.com/q/627903/94922 for details.
   include fastcgi_params;
   # Block httpoxy attacks. See https://httpoxy.org/.
   fastcgi_param HTTP_PROXY "";
   fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
   fastcgi_param PATH_INFO $fastcgi_path_info;
   fastcgi_param QUERY_STRING $query_string;
   fastcgi_intercept_errors on;
   # PHP 5 socket location.
   #fastcgi_pass unix:/var/run/php5-fpm.sock;
   # PHP 7 socket location.
   fastcgi_pass unix:/var/run/php/php7.0-fpm.sock;
 }

location ~* \.(?:jpg|jpeg|gif|png|ico|cur|gz|svg|svgz|mp4|ogg|ogv|webm|htc)$ {
 #expires 1M;
 access_log off;
 add_header Cache-Control "public, no-transform, max-age=2628000";
}

 pagespeed on;
 # Needs to exist and be writable by nginx.  Use tmpfs for best performance.
 pagespeed FileCachePath /var/ngx_pagespeed_cache;
 # Ensure requests for pagespeed optimized resources go to the pagespeed handler
 # and no extraneous headers get set.
 location ~ "\.pagespeed\.([a-z]\.)?[a-z]{2}\.[^.]{10}\.[^.]+" {
   add_header "" "";
 }
 location ~ "^/pagespeed_static/" { }
 location ~ "^/ngx_pagespeed_beacon$" { }
}

您正在使用兩個相關的配置指令，關於“Cache-Control”標頭（見下文）。我建議僅使用add_header，因為您欣賞“Cache-Control”標頭的“no-transform”指令。

過期1M；

–> 將設置標題“Cache-Control”和“Expires”。

請參閱文件：

啟用或禁用添加或修改“Expires”和“Cache-Control”響應標頭…

add_header Cache-Control “public, no-transform, max-age=2628000”;

–> 將手動設置“Cache-Control”標頭。

引用自：https://serverfault.com/questions/903487