概述
HTTP 缓存头工作流是一个初级难度的工作流。为静态资源和 API 响应配置 HTTP 缓存头，提升性能并减少服务器负载。该工作流的目标是：Set appropriate cache headers to optimize loading performance.
环境准备
执行本工作流需要以下环境：A web server or CDN configuration access；Understanding of Cache-Control and ETag headers；Static assets and API endpoints to configure。请确保在开始前准备好所有必需的工具和资源，以避免中途因环境问题中断。
执行步骤
本工作流包含4个步骤。步骤1：Identify cacheable resources——List static assets and API responses that can be safely cached. 步骤2：Set static asset headers——Configure long-lived cache headers with fingerprinted filenames for static assets. 步骤3：Set API response headers——Configure appropriate cache headers for API responses, using ETag or Last-Modified. 步骤4：Verify with curl——Use curl -I to inspect the headers returned for each resource.
验证与清理
预期结果：All cacheable resources have appropriate cache headers, verified with curl.。验证方法：Run curl -I for each resource type and confirm the cache headers match the intended strategy.。清理操作：No cleanup needed; cache configuration should be committed.。estimatedMinutes 为 20 分钟。
代码示例
curl -I https://example.com/static/app.abc123.js
# Should show: Cache-Control: public, max-age=31536000, immutable