HTTP Working GroupP. McManus
Intended status: Standards TrackApril 30, 2017
Expires: November 1, 2017

partnersuche frankfurt main jugendherberge HTTP Immutable Responses


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senior dating sites canada free The immutable HTTP response Cache-Control extension allows servers to identify resources that will not be updated during their freshness lifetime. This assures that a client never needs to revalidate a cached fresh resource to be certain it has not been modified.good dating site in canada

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list of free dating site in usa HTTP’s freshness lifetime mechanism [RFC7234] allows a client to safely reuse a stored response to satisfy future requests for a specified period of time. However, it is still possible that the resource will be modified during that dating price comparison

list of free dating site in us For instance, a front page newspaper photo with a freshness lifetime of one hour would mean that no user would see a cached photo more than one hour old. However, the photo could be updated at any time resulting in different users seeing different photos depending on the contents of their caches for up to one hour. This is compliant with the caching mechanism defined in [RFC7234].best indian dating site quora

best dating site london ontario Users that need to confirm there have been no updates to their cached responses typically use the reload (or refresh) mechanism in their user agents. This in turn generates a conditional request [RFC7232] and either a new representation or, if unmodified, a 304 (Not Modified) response [RFC7232] is returned. A user agent that understands HTML and fetches its dependent sub-resources might issue hundreds of conditional requests to refresh all portions of a common page [REQPERPAGE].best indian dating sites

best dating sites london free However some content providers never create more than one variant of a sub-resource, because they use “versioned” URLs. When these resources need an update they are simply published under a new URL, typically embedding an identifier unique to that version of the resource in the path, and references to the sub-resource are updated with the new path information.south american dating app

best dating site london 2013 For example, best place for singles in south america might be updated and republished as dating culture in south america, with any links that reference it being changed at the same time. This design pattern allows a very large freshness lifetime to be used for the sub-resource without guessing when it will be updated in the dating app south america

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senior dating sites in canada The mingle2 free online dating site immutable HTTP response Cache-Control extension allows servers to identify responses that will not be updated during their freshness sites reviews ireland

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starting a free dating website vs. paid The immutable extension only applies during the freshness lifetime of the stored response. Stale responses SHOULD be revalidated as they normally would be in the absence of dating indian website

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best free europe dating sites An immutable response has the same semantic meaning when received by proxy clients as it does when received by User-Agent based clients. Therefore proxies SHOULD skip conditionally revalidating fresh responses containing the immutable extension unless there is a signal from the client that a validation is necessary (e.g. a no-cache Cache-Control request directive).free online dating sites apps

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Cache-Control: max-age=31536000, immutable

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online dating sites military The immutable mechanism acts as form of soft pinning and, as with all pinning mechanisms, creates a vector for amplification of cache corruption incidents. These incidents include cache poisoning attacks. Three mechanisms are suggested for mitigation of this risk:south american dating free

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free dating sites in minnesota [RFC7234] sections 7.1 and 7.1.2 require registration of the immutable extension in the “Hypertext Transfer Protocol (HTTP) Cache Directive Registry” with IETF dating sites india free

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free europe dating site 2014 Thank you to Ben Maurer for partnership in developing and testing this idea. Thank you to Amos Jeffries for help with proxy interactions and to Mark Nottingham for help with the australian dating sites 2013

best australian dating site review References

best free dating apps 2015 Normative References

Fielding, R., Ed. and J. Reschke, Ed., “best free dating apps canada”, RFC 7231, best free dating apps, June 2014, <black white dating deutschland>.
Fielding, R., Ed. and J. Reschke, Ed., “top five online dating sites”, RFC 7232, partnersuche hamburg ab 50 qm, June 2014, <top dating sites in india for free>.
Fielding, R., Ed., Nottingham, M., Ed., and J. Reschke, Ed., “partnerbörsen ab 50 golfers”, RFC 7234, partnervermittlung hamburg kostenlos online, June 2014, <singles south american tours>.

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