easyXDM doesn't work on some IE7

[ghislaindj]

Hi,

I try easyXDM to make crossdomains iframes and request on IE7. It works very well on some IE7 (I've test it on browserstack and a Windows XP + IE 7 VM) but on others, it doesn't work at all.
But I try your examples too, and they doesn't work either. For example, on this VM, downloaded from https://github.com/xdissent/ievms (XP + IE7), I don't have anything on this page :

or on this page :

It seems that there isn't any iframe at all on these examples.

Do you have an idea ?

Thanks a lot in advance,

Ghislain