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Cache-Control max-age should be an integer, per the spec #106

telent opened this Issue · 2 comments

2 participants


1) Actual HTTP headers from a sinatra app that calls Sinatra::Helpers.expires

HTTP/1.1 200 OK
Cache-Control: max-age=2591999.99982039
Expires: Thu, 25 Nov 2010 14:03:54 GMT
Last-Modified: Fri, 22 Oct 2010 11:03:26 GMT
Content-Type: application/javascript
Server: thin 1.2.7 codename No Hup
Content-Length: 57254
Date: Tue, 26 Oct 2010 16:35:24 GMT
X-Varnish: 1175818610 1175810556
Age: 9090
Via: 1.1 varnish
Connection: keep-alive

2) RFC 2616

3.3.2 Delta Seconds

 Some HTTP header fields allow a time value to be specified as an
 integer number of seconds, represented in decimal, after the time
 that the message was received.

    delta-seconds  = 1*DIGIT

3) A brief exploration with irb

=> 252799.999996931

4) A suggested fix would be to add .to_i when setting max_age

5) I apologise for the lack of a proper test and patch but I am under deadline pressure. Hopefully you can find the bug on the information I've given


Yeah, this should be sufficient, thanks.


Make sure max-age is an integer (as specified by RFC2616). Closed by 1bee791.

This issue was closed.
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