If an expiration duration is specified, ClientCache sends "Cache-control" and "Expires" HTTP headers to the client. Installed by default.
IIS-level configuration (even in Web.config) can override the values set by ClientCache. Keep this in mind when troubleshooting issues.
Configuration
- Add
<clientcache minutes="1440" />to the<resizer />section. This controls how many minutes in the future the Expires header will be set to.
Default behavior
Cache-control: public is sent for all anonymous requests.
Cache-control: private is sent for all authenticated requests.
Last-modified: is sent based on the modified date of the source file.
Expires is sent only if 'minutes' is configured in web.config. For 24-hour expiration, use 1440 (suggested value).
This plugin (ClientCache plugin) is part of the Essential edition
Where is the plugins section?
The <plugins> section is located in Web.config, and is nested inside the <resizer> element, which is nested inside <configuration>. For examples, see this sample Web.config file.
Where can I find the dll?
We prefer that you install via NuGet, but you can also find the plugin DLL files in the /dlls/release folder of your download.
How do I typically install a plugin via Web.Config?
- In Visual Studio, right click on your project and choose "Add reference". Browse to the plugin DLL and click "OK".
- In the <plugins> section of Web.config, insert <add name="PluginName" />
- Look at the plugin documentation to see what configuration options (if any) are available.
