json-caching-proxy
Node caching HTTP proxy built on top of express-http-proxy. Persists requests and responses to an in-memory HAR-like data structure based on HAR1.2 . Caches JSON content-type responses by default with the ability to cache an entire site; including content-types describing images. Useful for testing front end code, mocking api, and saving the cache to a HAR file which can be used for further tests.