CDATA section breaks language files

Found in

EPiServer.CMS.Core 7.0.586.0

Fixed in

EPiServer.CMS.Core 9.12.1

(Or a related package)

Created

Jul 08, 2016

Updated

Aug 26, 2016

Area

CMS Core

State

Closed, Fixed and tested

Description

Steps to reproduce:
1. Add a dummy language file to a demo site.
2. Add normal translations to the language file and confirm that it works.
3. Add a CDATA element to the file.
4. Reload the page.

Expected:
Page loads normally

Actual:
You get an error