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To maintain compatibility with a wide variety of browsers and proxies, Swarm implements the caching mechanisms for both HTTP/1.0 and HTTP/1.1.
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NoteSwarm returns a an HTTP 412 response if it cannot find the bucket or domain associated with a request. This can be distinguished from a cache response by the lack of the current ETag in the response headers and a response body that denotes that the bucket or domain cannot be located. |
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Castor-System-Created deprecatedThe Castor-System-Created header is deprecated, replaced with the more standard Last-Modified header. For backward compatibility with previously stored data, Swarm continues to generate both headers and behave operates as it does now if it encounters an object with a Castor-System-Created header, but without a Last-Modified header. If a stored object includes both headers, Swarm uses the value of the Last-Modified header. A future release ceases generating the deprecated header for newly-stored content. |
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An entity is not returned from the server if the requested object was not modified since the time specified in the If-Modified-Since header. Instead, a an HTTP 304 Not Modified response is returned without any message-body.
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