如何解决 Google 页面速度："expiration not specified"

Question

使用 GooglePageSpeed 分析在线商店 (Shopware) 会导致每张图片上有许多 "expiration not specified" 行。

我想知道是因为网络服务器 (nginx) 添加了 Last-Modified-时间戳和 ETAG headers对所有图像的响应，导致对第二个请求的预期 304 响应。

ETAG/LastModified Google Page Speed 不支持吗？

我会提供nginx-configuration的适当部分：

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";
}

## All static files will be served directly.
location ~* ^.+\.(?:css|cur|js|jpe?g|gif|ico|png|html|xml)$ {
    ## Defining rewrite rules
    rewrite files/documents/.* /engine last;
    rewrite backend/media/(.*) /media/ last;

    expires 1w;
    add_header Cache-Control "public, must-revalidate, proxy-revalidate";

    access_log off;
    # The directive enables or disables messages in error_log about files not found on disk.
    log_not_found off;

    tcp_nodelay off;
    ## Set the OS file cache.
    open_file_cache max=3000 inactive=120s;
    open_file_cache_valid 45s;
    open_file_cache_min_uses 2;
    open_file_cache_errors off;

    ## Fallback to shopware
    ## comment in if needed
    #try_files $uri @shopware;
}

有没有错漏的地方？

Answer 1

最后我们发现，vhost-config 中还有另一个 expire-statement。将两者减少到一个语句解决了我们的问题

如何解决 Google 页面速度："expiration not specified"

How to solve Google Page Speed: "expiration not specified"

nginx

cache-control

expires-header

shopware