在Url Rewrite Module中增加如下的规则：
<rewrite>
<allowedServerVariables>
<add name="REMOTE_ADDR" />
</allowedServerVariables>
<globalRules>
<rule name="HTTP_X_Forwarded_For-to-REMOTE_ADDR" enabled="true">
<match url=".*" />
<serverVariables>
<set name="REMOTE_ADDR" value="{HTTP_X_Forwarded_For}" />
</serverVariables>
<action type="None" />
<conditions>
<add input="{HTTP_X_Forwarded_For}" pattern="^$" negate="true" />
</conditions>
</rule>
</globalRules>
</rewrite>
6、 设置Cache-Control为public
在web.config中添加如下配置：
<configuration>
<system.webServer>
<staticContent>
<clientCache cacheControlCustom="public" />
</staticContent>
</system.webServer>
</configuration>
