product component doesn't work in several browser

Hi.I am new user of Adobe CQ .
There is a question about displaying components in different browser.

I have developed components, using IE9,
and the other one has written CSS, using Chrome and FireFox(latest ver.).
We use same author instance.(AEM ver 5.6.1)

After completion of following steps, the problem occurs: 

0: Create a page component.
1: Include parsys in JSP which render the page component.
2: Put a product component which cq eCommerce add-on has on parsys
3: Check the component displayed in IE9
4: Check the component displayed in FireFox and Chrome(latest ver.)

the problem is that in Chrome and FireFox, the product component wasn't displayed,
while in IE9 the product component was displayed.

Is there any rule that we have to follow or any tips  when we put product component on parsys in Chrome or FireFox?

Regards,
Yazawa