jQuery caching with POST

Although I have set开发者_高级运维 cache:false in a jQuery AJAX Post request, it does not add the extra randomg string. Is this because post does not cache?

Thank you for your time.

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RFC 2616 states (in section 13) that POST requests should not be cached.

Some HTTP methods MUST cause a cache to invalidate an entity. This is either the entity referred to by the Request-URI, or by the Location or Content-Location headers (if present). These methods are:

- PUT
- DELETE
- POST