Net invalidating

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Since version 3.4.7 S3 Browser supports Cloud Front Invalidation and below we will show you how to invalidate Cloud Front Distributions using S3 Browser.

S3 Browser will send invalidation request for the files and/or folders you selected.

Having done some automated browser testing recently, it was easy to whip up a couple of tests for these requirements.

I’ve moved all of the caching-related testing into one page; while it uses XMLHttp Request, these results should be valid for most any implementation, as the same cache as the normal browser be used. Safari seems OK for these purposes (even unknown methods), while Firefox gloriously fails all of the invalidation tests.

More specifically, the logout function must ensure that all session tokens (e.g., cookies) are properly destroyed or made unusable, and that proper controls are enforced at the server side to prevent the reuse of session tokens.

I currently co-chair the IETF HTTP and QUIC Working Groups, and am a member of the Internet Architecture Board. HTTP has this to say about the matter; Some HTTP methods MUST cause a cache to invalidate an entity.

I usually write here about the Web, protocol design, HTTP, and caching. This is either the entity referred to by the Request-URI, or by the Location or Content-Location headers (if present).

Saturday, 18 February 2006 Filed under: Caching Web Have you ever posted a comment to a blog, found it missing, so you re-posted it, only to find two entries? Aaron pinged me the other day with this problem, and I responded that the Right way to do this is to POST to the same resource (i.e., the blog entry), so that the POST invalidates the cache.

These methods are: - PUT - DELETE - POST In order to prevent denial of service attacks, an invalidation based on the URI in a Location or Content-Location header MUST only be performed if the host part is the same as in the Request-URI.

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