modxcms/revolution — pull request #798 by rtripault (2014-01-15 11:27:01+00:00)
Title: Fix deprecated returnValue

Since Chrome 32.0.1700.77 (Linux), every time you leave an "update resource panel", we are asked to make "confirm navigation".

Changing returnValue to preventDefault() fixes the issue.

**Note** : This has not been tested on other browsers/OS