过期标头最常与图像，一起使用，但他们应可以用于包括脚本、样式表和闪速组件的所有组件。
Expires headers are most often used with images, but they should be used on all components including scripts, stylesheets, and Flash components.
过期标头最常与图像，一起使用，但他们应可以用于包括脚本、样式表和闪速组件的所有组件。
Expires headers are most often used with images, but they should be used on all components including scripts, stylesheets, and Flash components.
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