Edge Cache

Iridium supports edge caching for static files. You can enable edge caching in the configuration file by setting the edge_cache.enabled option to true. This option can be applied globally or per host.

Because edge caching stores files in memory, make sure your server has enough RAM to handle the cached files.

Tip

When Edge Caching is enabled, Iridium will automatically add a X-Cache: HIT or a X-Cache: MISS header to the response, indicating whether the response was served from the cache or not.

Caching Time

If not specified, the caching time will be taken from the Cache-Control header of the response. If the header is not present, a default caching time of 1 hour (3600 seconds) will be used.

This can be configured in the edge_cache.duration option in the configuration file (in seconds).

Clearing the Cache

You can clear the entire edge cache by restarting the Iridium server.