No expires header
- by Tom Gullen
I have the report from YSlow:
(no expires) http://static3.scirra.net/avatars/128/40cfdcbd1b1ec1842e199c97c4b85a4a.png
(And a lot more similar). In my web.config though, I have:
<system.webServer>
<staticContent>
<clientCache httpExpires="Sun, 29 Mar 2020 00:00:00 GMT" cacheControlMode="UseExpires" />
</staticContent>
<caching>
<profiles>
<add extension=".ashx" policy="CacheForTimePeriod" kernelCachePolicy="DontCache" duration="01:00:00" />
<add extension=".png" policy="CacheUntilChange" kernelCachePolicy="CacheUntilChange" location="Any" />
</profiles>
</caching>
<rewrite>
<rules>
<rule name="Avatar">
<match url="avatars/([0-9]+)/(.*).png" />
<action type="Rewrite" url="gravatar.ashx?hash={R:2}&size={R:1}" appendQueryString="false" />
</rule>
</rules>
</rewrite>
Should this not be adding the expires header correctly? My objectives are:
Gravatar.ashx fetches image from Gravatar server
Server caches result for 1 hour (similar to SO)
Expires header is added so client doesn't keep fetching it from my server
