IIS 7.5和图像未被缓存

Question

我无法获取图像文件缓存。我尝试了在本网站和其他网站上找到的所有内容，但仍然无法让它们缓存。我曾尝试

<staticContent> 
    <clientCache cacheControlMode="UseMaxAge" cacheControlMaxAge="1.00:00:00" /> 
    </staticContent> 
    <httpProtocol allowKeepAlive="true" /> 


    <caching enabled="true" enableKernelCache="true"> 
    <profiles> 
    <add extension=".png" policy="CacheUntilChange" /> 
    <add extension=".jpg" policy="CacheForTimePeriod" duration="12:00:00" /> 
    </profiles> 
    </caching> 

这里

的Web配置设置对于图像的1响应头

Key Value 
    Response HTTP/1.1 200 OK 
    Cache-Control no-cache 
    Content-Type image/png 
    Last-Modified Thu, 16 Dec 2004 18:33:28 GMT 
    Accept-Ranges bytes 
    ETag "a1ca4bc9de3c41:0" 
    Server Microsoft-IIS/7.5 
    X-Powered-By ASP.NET 
    Date Fri, 18 May 2012 13:21:21 GMT 
    Content-Length 775 

Answer 1

下应该引起浏览器缓存您的图片：

<staticContent> 
    <clientCache cacheControlMode="UseMaxAge" cacheControlMaxAge="1.00:00:00" /> 
</staticContent> 
<httpProtocol> 
    <customHeaders> 
     <add name="Cache-Control" value="public" /> 
    </customHeaders> 
</httpProtocol> 

<caching>...</caching>块用于服务器端的缓存，而不是客户端的cachin G。