1.
Navigate to the Configure > Protocols > HTTP > Cacheability tab.
2.
In the When to Revalidate area of the Behavior section, select:
*
Never Revalidate to never verify the freshness of a requested HTTP object with the origin server.
*
Always Revalidate to always verify the freshness of a requested HTTP object with the origin server.
*
Revalidate if Heuristic Expiration to verify the freshness of a requested HTTP object with the origin server if the object contains no Expires or Cache-Control headers. Content Gateway considers all HTTP objects without Expires or Cache-Control headers to be stale.
*
Use Cache Directive or Heuristic to verify the freshness of a requested HTTP object with the origin server when Content Gateway considers the object in the cache to be stale. This is the default.
3.
Click Apply.
Note