I would like to set up rules in IIS7 for static content caching in my ASP.NET website.
I have seen these articles, which details how to do it using the <clientCache /> element in web.config:
Client Cache
<clientCache>(IIS.NET)
Add Expires or Cache Control Header to static content in IIS (Stack Overflow)
However, this setting appears to apply globally to all static content. Is there a way to do this just for certain directories or extensions?
For example, I may have two directories which need separate cache settings:
/static/images
/content/pdfs
Is it possible to set up rules for sending cache headers (max-age, expires, etc) based on extensions and folder paths?
Please note, I must be able to do this via web.config because I don't have access to the IIS console.
This question is related to
iis
iis-7
caching
web-config
http-headers
You can set specific cache-headers for a whole folder in either your root web.config:
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<!-- Note the use of the 'location' tag to specify which
folder this applies to-->
<location path="images">
<system.webServer>
<staticContent>
<clientCache cacheControlMode="UseMaxAge" cacheControlMaxAge="00:00:15" />
</staticContent>
</system.webServer>
</location>
</configuration>
Or you can specify these in a web.config file in the content folder:
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<system.webServer>
<staticContent>
<clientCache cacheControlMode="UseMaxAge" cacheControlMaxAge="00:00:15" />
</staticContent>
</system.webServer>
</configuration>
I'm not aware of a built in mechanism to target specific file types.
I had the same issue.For me the problem was how to configure a cache limit to images.And i came across this site which gave some insights to the procedure on how the issue can be handled.Hope it will be helpful for you too Link:[https://varvy.com/pagespeed/cache-control.html]
You can do it on a per file basis. Use the path attribute to include the filename
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<location path="YourFileNameHere.xml">
<system.webServer>
<staticContent>
<clientCache cacheControlMode="DisableCache" />
</staticContent>
</system.webServer>
</location>
</configuration>
Source: Stackoverflow.com