View Full Version : [INFOREQ] undefined is read-only

10 Sep 2014, 3:50 PM
I am developing an application that uses the library ext-base.js. When I try to load the application in firefox 27.0.1 gives error:

undefined is read-only

In the firedebug I can see the in the line: window.undefined=window.undefined

* Ext JS Library 3.4.0
* Copyright(c) 2006-2011 Sencha Inc.
* [email protected]
* http://www.sencha.com/license

But works well in the google Chrome Versión 33.0.1750.117
I am using:
ExtJS 3.4
Firefox 27.0.1
Linux Ubuntu 12.04 LTS
Attached one picture of the error.


11 Sep 2014, 2:18 AM
Steps & code to reproduce?

11 Sep 2014, 5:17 PM
1 - open my firefox and load my application by file composer.html (attached in this mail)
2 - firedebug stops my application and get the error that I showed before: undefined is read-only (http://www.sencha.com/forum/showthread.php?291630-undefined-is-read-only) in teh file ext-base.js (attached in this mail) of Extjs 3.4

I have no way to reproduce the problem.