rails/rails — pull request #15363 by mkdynamic (2014-05-27 08:41:27+00:00)
Title: Fix ERB::Util::escape_json to escape javascript incompatible whitespace

Brings the `ERB::Util::escape_json` inline with the behavior in Rails 4.

More info: http://timelessrepo.com/json-isnt-a-javascript-subset
Related: https://github.com/rails/rails/pull/13073