We have a Rails app, standard kind, browser sending requests to the
Rails app on the server. We want to get (if possible) the
date/time/timezone of the machine on which the browser is running. This
is for some date/time calculations that we need to do.
Done some research on this. HTTP standard says that "Date:" is one of
the general HTTP headers. By checking, we found that:
a) it is not a requirement of the HTTP standard that a browser should
send this header, even though it is a defined and legal header.
b) not all browsers necessarily send this header; e.g. Firefox 2.x on
Linux does not - we checked.
c) we dumped all the values in the request.env hash to screen, didn't
find the Date: header, though there were many other headers like
SERVER_SOFTWARE, HTTP_ACCEPT, etc.
d) also dug around (some) in the Rails source, didn't find anything
but may still want to try the above approach. Does anyone know if there
is any other way to get the Date: header, from the Rails environment
(maybe some lower level call), assuming, of course, that a browser does
Thanks for any help,