Silverstripe HTTP Cache

Enables caching for all page content (through PageController).

Enabling cache

In your extensions yml file include

#Enable Caching on dev mode
---
Name: 'app_httpconfig'
After: '#httpconfig-dev'
Only:
  environment: dev
---
SilverStripe\Control\Middleware\HTTPCacheControlMiddleware:
  defaultState: 'disabled'
  defaultForcingLevel: 0

#Module config
---
Name: appcache
After: '#cwpcoreconfig'
---
Page:
  http_cache_force: false
  extensions:
    - DNADesign\HTTPCacheControl\PageExtension
PageController:
  extensions:
    - DNADesign\HTTPCacheControl\ControllerExtension

USE AT YOUR OWN RISK You can force caching by setting http_cache_force to true, that will force cache all over the website IGNORING any default SS behaviours.

Disabling cache

You can disable cache on a page or pages with specific elements as below.

Page will have cache disabled

namespace\for\Page:
  http_cache_disable: true

Any page with Element will have cache disabled

namespace\for\Element:
  http_cache_disable: true

CMS

Testing

You can test your header directly in your browser's devTools or in your terminal with the following command

curl --silent --dump-header - --write-out 'Total (secs): %{time_total}' http://yoursite.com --output /dev/null

References

For more info refer to Silverstripe HTTP Cache Headers docs