[FIXED][3.0rc1] Charts don't refresh in IE6

[tonedeaf]

I've noticed this bug in IE6. When you open a URL containing ExtJS charts the first time, it loads up fine, but on refreshing the page or on clicking the "Go" button again, the charts are empty.

http://extjs.com/deploy/ext-3.0-rc1/examples/chart/charts.html

[rusty124]

Same issue in IE 7. Charts display on initial load but not after refreshing page. If you clear browser cache and reload they will display.

[evant]

Fixed in SVN.