Unable to upload documents in catalan language (maybe others)

• Type: Regression Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 6.2.0 CE M2
• Fix Version/s: --Sprint 11/12, 6.2.0 CE M2
• Component/s: Content Display Widgets > Language widget, Documents & Media
• Labels:
  • Document-Library
  • QA-R
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/5796

When you try to upload a document using the Documents and Media portlet, a javascript error is displayed and it's unable tu upload it. Steps to reproduce it:
1- Drag and drop language portlet
2- Select catalan language
3- Drag and drop Documents and Media portlet
4- Click on Afegeix (add) to add a basic document
5- Upload a document (previously an error is displayed in the console, it has been attached the log)

The document has not been uploaded.

It's an issue related to escape actions.