zendframework / zend-expressive-session-ext / 175

98%

Pull #44

travis-ci

Only send headers if sessions changed

By doing so we avoid the following downsides:

- a (very) slight performance hit (on server CPU, client CPU and network
  transfer) for no gain at all
- pretty much all HTTP request going through PHP were becoming
  non-cacheable with default behavior of cache limiting headers
- when configuring a cookie_lifetime, the absolute expiry date of the
  cookie was re-set on every requests rendering the lifetime effectively
  infinite. That made it impossible to have a fixed lifetime

Fixes https://github.com/zendframework/zend-expressive-session/issues/36

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