Contents
What is a cached request?
Caching is a technique that stores a copy of a given resource and serves it back when requested. When a web cache has a requested resource in its store, it intercepts the request and returns its copy instead of re-downloading from the originating server.
Does Varnish cache POST requests?
By default, Varnish will not cache POST requests, but pass them directly to the backend server, unmodified. This is typically a good idea, but sometimes it makes sense to also cache POST requests.
Can you change the URL of a cached resource?
You can’t, at least not without changing the URL of the resource. After the browser caches the response, the cached version is used until it’s no longer fresh, as determined by , or until it is evicted from the cache for some other reason—for example, the user clearing their browser cache.
Can a GET request be cached in http?
But HTTP caching is applicable only to idempotent requests, which makes a lot of sense; only idempotent and nullipotent requests yield the same result when run multiple times. In the HTTP world, this fact means that GET requests can be cached but POST requests cannot.
What is the default value for the requestcache?
A RequestCache value. The available values are: default — The browser looks for a matching request in its HTTP cache. If there is a match and it is fresh, it will be returned from the cache. If there is a match but it is stale, the browser will make a conditional request to the remote server.
How to cache HTTP requests in an angular app?
Cache strategy freshness will first request the API and will only resolve to the cache after a timeout, specified in the timeout property, is reached. This strategy allows us to specify a maximum tolerable delay from the API. Likewise, this strategy will store the number of responses specified in maxSize and will keep it until maxAge is reached.