關於「A cache-control header is missing or empty」標籤，搜尋引擎有相關的訊息討論：

Cache-Control - HTTP - MDN Web Docs。

2021年10月3日 · The Cache-Control HTTP header holds directives (instructions) for caching in both requests and responses. If a given directive is in a ...： 。

What is Cache-Control and How HTTP Cache Headers Work - Imperva。

The no-cache directive means that a browser may cache a response, but must first submit a validation request to ...： 。

How caching and CDNs work | Fastly Help Guides。

2021年9月21日 · Fastly will respect the Expires header value only if the Surrogate-Control or Cache-Control headers are not found in the request. Cache-Control.： 。

Missing 'Cache-Control' Header | Tenable®。

2019年2月15日 · Missing 'Cache-Control' Header. low Web Application Scanning Plugin ID 112553. New! Plugin Severity Now Using CVSS v3.： 。

What Is Cache-Control? Everything You Need to Know - CDNetworks。

2021年1月21日 · The no-cache directive uses the ETag header field for validation of the cached response by making a roundtrip to and from the server to ensure ...： empty? 。

A Guide to Caching with NGINX and NGINX Plus。

2015年7月23日 · NGINX does not automatically delete content that has expired as defined by a cache control header ( Cache-Control:max-age=120 for example).： 。

Response caching in ASP.NET Core | Microsoft Docs。

2021年5月10日 · Exists for backwards compatibility with HTTP/1.0 caches for setting no-cache behavior. If the Cache-Control header is present, the Pragma header ...： 。

How to prevent caching in Internet Explorer - Browsers。

2021年5月19日 · Summary; Expiration and the Expires header; The Cache-Control header; The Pragma: No-Cache header; HTTP-EQUIV META tags; Problem checklist ...： 。

Caching overview | Cloud CDN。

If a response is cacheable based on its MIME type but has a Cache-Control response header of private or no-store , or a Set-Cookie header (see the full list of ...： 。

What is cache-control? | Cache explained | Cloudflare。

In order to understand cache-control in greater depth, a basic understanding of browser caching and HTTP headers is required.：