guardian/frontend — pull request #7432 by rich-nguyen (2014-12-04 16:34:32+00:00)
Title: Only provide a redirect for tag combiners

It turned out that our 4XX, redirect looping, encoder endpoint was only worth 4 200 responses every 5 minutes, all of which were tag combiners.

This pr maintains the tag combiner redirect, whilst giving a 404 for other encoded urls.