mozilla/snippets-service — pull request #43 by Osmose (2013-11-15 20:47:24+00:00)
Title: Do not match snippets that have locales if client locale is invalid.

Fixes a bug where invalid locales are matching tons of snippets that
they shouldn't be receiving.

See [this link](https://snippets.mozilla.com/3/Firefox/15.0.1/20120907230839/Linux_x86-gcc3/qcv/release/Linux 2.6.32-43-generic (GTK 2.20.1)/canonical/1.0/) for an example of the bug happening on production.