XF 2.1 How to prevent page from being cached?

[Kirby]

I've got a widget on the public sidebar. If this widget does display certain data, the page may not be cached for guest page cache.

How can this be achieved in a clean & scalable way?

The only approaches I've found so far are

• Abuse the dbWriteForces cookie
  Feels hacky
• Use the onSetup closure
  This does not seem to be a scalable approach that would work for multiple Add-ons (from multiple authors)

 

[Mike]

Set:

\XF\Pub\App::$allowPageCache = false;

We use this in several controllers to disable caching in them entirely (registration most significantly), but potentially also if you have a page criteria check whether the user has come from a search engine (and it's true).