什么是正确的方式来告诉浏览器不缓存？ [英] What is the proper way to tell the browser not to cache?

问题描述

我有一个网页，总是需要保持电流。我不希望浏览器缓存它。为此，这个元标记中嵌入了页：

I have a web page that always needs to stay current. I do not want the browser to cache it. To that end, this meta tag is embedded with the page:

<meta name="Expires" content="Tue, 01 Jun 1999 19:58:02 GMT">

然而，某些浏览器似乎忽略它。 Chrome是它特别糟糕，但其他浏览器往往会做同样的事情。

However, some browsers seem to ignore it. Chrome is particularly bad at it, though other browsers tend to do the same thing.

当我选择的页面从书签栏，大部分时间，它甚至不打服务器，只需加载它从缓存中。如果我再preSS F5，它转到服务器并获取一个新的副本。

When I pick the page from the bookmarks bar, most of the time, it doesn't even hit the server, just loads it from cache. If I then press F5, it does go to the server and fetch a new copy.

我失去了一些东西简单？我以为过期meta标签是它的完成方式。

Am I missing something simple? I thought the expires meta tag is the way it's done.

这是上的IIS 5.0在Windows 2000上发生的事情。

This is happening on an IIS 5.0 on Windows 2000.

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底线：看起来像HTML code pretty里面很多的meta标签什么都不做。然而，设定到期标记内的HTTP的伎俩很好。

Bottom line: looks like meta tags inside the HTML code pretty much do nothing. However, setting the expires tags within the HTTP does the trick nicely.

推荐答案

发送您使用您的服务器Expires头。特别是，如果你使用Apache，看看这个：

Send your expires headers using your server. Specifically, if you're using apache, look at this:

<一个href=\"http://httpd.apache.org/docs/2.0/mod/mod%5Fexpires.html\">http://httpd.apache.org/docs/2.0/mod/mod%5Fexpires.html

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