When running my django webapp on my local box, why am I getting a blank screen with firefox 7.0.1

I have two web apps wri开发者_JAVA百科tten in Django 1.1. In the past, I have never had problems running them on my local computer via http://127.0.0.1:8000. Recently, my firefox was upgraded to v. 7.0.1. Now, from time to time and for various urls, firefox will display a blank screen or a partial screen - something that never happened before.

If I hit the refresh button, the page shows up (some times it takes 3-4 tries). For development, it's not that big a problem, except that it breaks my Selenium tests.

Any ideas why that might be happening and what solution there could be?

It could be something to do with the cache. Have you set the about:config settings so no caching takes place.