Extjsremove the impact of s.gif

When you debug EXTJs examples, often go to access http://extjs.com/s.gif, if some friends can not access foreign websites (such as: Campus Network, the company restricts the Internet), will wait for a long time, although there is no impact, it is also very uncomfortable.
In fact, this is always easy to solve, as long as you add the following code before the Ext. onReady () method (or the first sentence of the method!

Ext. BLANK_IMAGE_URL = "<% = response. request. getContextPath () %>/js/Ext/resources/images/default/s.gif ";