make IIS 7.5 cache static content files over diferent pages
- by Achilles
On a Windows 2008 R2, using DNS and IIS I've established my development test server; i.e. I'll have a web application that I can browse on http://test.dev
I've moved all the static content files like images, js files and css files into another application which is visible on http://cdn.test.dev
test.dev, uses cdn.test.dev urls like http://cdn.test.dev/js/jquery.js to load js, css and images.
When I first load "~/" of test.dev, all files will load with a response code of 200; when I press F5 in Firefox, all files, except the "~/default.aspx", will load with 304 response code; but pressing Ctrl+F5 loads them again with a 200 code; if I browse another url like "~/pages/" in test.dev, all of those static files will reload with a 200 code... Is this normal or I'm doing something wrong?
Actually, I'm looking for a behavior like this:
I want the client to load http://cdn.test.dev/js/jquery.js, only once. I want the client's browser to use this jquery.js file, from cache, in all other pages of test.dev
Is this possible?
This is the web.config file I have in the root directory of cdn.test.dev:
<configuration>
<system.webServer>
<caching>
<profiles>
<add extension=".png" policy="CacheUntilChange" varyByHeaders="User-Agent" location="Client" />
<add extension=".gif" policy="CacheUntilChange" varyByHeaders="User-Agent" location="Client" />
<add extension=".jpg" policy="CacheUntilChange" varyByHeaders="User-Agent" location="Client" />
<add extension=".js" policy="CacheUntilChange" varyByHeaders="User-Agent" location="Client" />
<add extension=".css" policy="CacheUntilChange" varyByHeaders="User-Agent" location="Client" />
<add extension=".axd" kernelCachePolicy="CacheUntilChange" varyByHeaders="User-Agent" location="Client" />
</profiles>
</caching>
<httpProtocol allowKeepAlive="true">
<customHeaders>
<add name="Cache-Control" value="public, max-age=31536000" />
</customHeaders>
</httpProtocol>
<validation validateIntegratedModeConfiguration="false" />
<modules runAllManagedModulesForAllRequests="true">
<remove name="RadUploadModule" />
<remove name="RadCompression" />
<add name="RadUploadModule" type="Telerik.Web.UI.RadUploadHttpModule" preCondition="integratedMode" />
<add name="RadCompression" type="Telerik.Web.UI.RadCompression" preCondition="integratedMode" />
</modules>
<handlers>
<remove name="ChartImage_axd" />
<remove name="Telerik_Web_UI_SpellCheckHandler_axd" />
<remove name="Telerik_Web_UI_DialogHandler_aspx" />
<remove name="Telerik_RadUploadProgressHandler_ashx" />
<remove name="Telerik_Web_UI_WebResource_axd" />
<add name="ChartImage_axd" path="ChartImage.axd" type="Telerik.Web.UI.ChartHttpHandler" verb="*" preCondition="integratedMode" />
<add name="Telerik_Web_UI_SpellCheckHandler_axd" path="Telerik.Web.UI.SpellCheckHandler.axd" type="Telerik.Web.UI.SpellCheckHandler" verb="*" preCondition="integratedMode" />
<add name="Telerik_Web_UI_DialogHandler_aspx" path="Telerik.Web.UI.DialogHandler.aspx" type="Telerik.Web.UI.DialogHandler" verb="*" preCondition="integratedMode" />
<add name="Telerik_RadUploadProgressHandler_ashx" path="Telerik.RadUploadProgressHandler.ashx" type="Telerik.Web.UI.RadUploadProgressHandler" verb="*" preCondition="integratedMode" />
<add name="Telerik_Web_UI_WebResource_axd" path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource" verb="*" preCondition="integratedMode" />
</handlers>
<security>
<requestFiltering>
<requestLimits maxAllowedContentLength="10485760" />
</requestFiltering>
</security>
<staticContent>
<clientCache cacheControlMode="UseExpires" httpExpires="Wed, 01 Jan 2020 00:00:00 GMT"/>
</staticContent>
</system.webServer>
<appSettings />
<system.web>
<compilation debug="false" targetFramework="4.0" />
<pages>
<controls>
<add tagPrefix="telerik" namespace="Telerik.Web.UI" assembly="Telerik.Web.UI" />
</controls>
</pages>
<httpHandlers>
<add path="ChartImage.axd" type="Telerik.Web.UI.ChartHttpHandler" verb="*" validate="false" />
<add path="Telerik.Web.UI.SpellCheckHandler.axd" type="Telerik.Web.UI.SpellCheckHandler" verb="*" validate="false" />
<add path="Telerik.Web.UI.DialogHandler.aspx" type="Telerik.Web.UI.DialogHandler" verb="*" validate="false" />
<add path="Telerik.RadUploadProgressHandler.ashx" type="Telerik.Web.UI.RadUploadProgressHandler" verb="*" validate="false" />
<add path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource" verb="*" validate="false" />
</httpHandlers>
<httpModules>
<add name="RadUploadModule" type="Telerik.Web.UI.RadUploadHttpModule" />
<add name="RadCompression" type="Telerik.Web.UI.RadCompression" />
</httpModules>
<httpRuntime maxRequestLength="10240" />
</system.web>
</configuration>
and this is the resulting response header for http://cdn.test.dev/css/global.css:
Cache-Control: private,public, max-age=31536000
Content-Type: text/css
Content-Encoding: gzip
Expires: Wed, 01 Jan 2020 00:00:00 GMT
Last-Modified: Mon, 06 Sep 2010 08:53:06 GMT
Accept-Ranges: bytes
Etag: "0454eca04dcb1:0"
Vary: Accept-Encoding
Server: Microsoft-IIS/7.5
X-Powered-By: ASP.NET
Date: Mon, 06 Sep 2010 14:57:08 GMT
Content-Length: 4495
