I have a method in my controller which uses send_data like this:
def show
expires_in 10.hours, :public => true
send_data my_image_generator, :filename => "image.gif", :type => "image/gif"
end
Using expires_in results in headers being sent like this:
HTTP/1.1 200 OK
Connection: close
Date: Fri, 25 Jun 2010 10:41:22 GMT
ETag: "885d75258e9306c46a5dbfe3de44e581"
Content-Transfer-Encoding: binary
X-Runtime: 143
Content-Type: image/gif
Content-Disposition: inline; filename="image.gif"
Content-Length: 1277
Cache-Control: max-age=36000, public
What I would like to do is add an header like Expires: (some exact date)
to keep the user agent from revalidating. But I don't see how to make send_data set that header?
I guess I could set it explicitly in the response.headers
hash, but surely there must be a wrapper for that (or something)?