Some APIs like Paypal IPN send back POST requests to your application which doesn't contain an HTTP_USER_AGENT, causing this gem to crash. This little fix avoids this issue.
…ssion cookie to be created unless it wouldn't (for paranoia).
…of a client/server-side hack - to make Safari accept 3rd party cookies in iframes - mentioned in README.
…being sent, as specified in the W3C spec P3P header is not valid in a 304 response. Send 200 OK for these responses.
…sing though - need to decide on best approach.
…'t work with HTTP cache headers).