I’m working in a project where my application calls some web services to retrieve data for popolate SpringGraph component (very cool component made by Mark Shepherd).
After extends and change component’s classes, I find a documented issue with HTTPservice and Internet Explorer 7.
In fact you must put server header with no-cache because randomly calls to service don’t work!There is also some comments about this problem in Adobe livedocs (search “ie7” in the page).
So be careful and Flex yourself!