Popsicle Cache

A caching plugin for the Popsicle HTTP client, version 5.0.1. It provides middleware to cache HTTP responses using pluggable catbox engines. Built-in support for TTL-based expiry, cacheable conditions, serializers (JSON, stream), and handlers (freshness validation). No external caching engine is included; you must provide one (e.g., catbox-fs, catbox-memory). Updated as needed following Popsicle releases.