guardian/frontend — pull request #2801 by ironsidevsquincy (2014-01-20 17:28:20+00:00)
Title: 303 response for alpha preference

302 *seems* to cause certain clients (iphone) to use the browser cache of the `Location` url

Trying a 303, can't really test this except on prod, as needs to go through fastly

Only trying on the alpha preference endpoints for now