jsonp request on same domain fails

jsonp request on same domain fails

Hi...

...I'm using jquery 1.3.2 and I notice that if I do a jsonp request on the same domain it fails without error:

ex:
this doesn't work:
http://www.mysite.com/mypage.htm
http://www.mysite.com/jsonp.php

this works:
http://www.mysite.com/mypage.htm
http://mysite.com/jsonp.php

I know that jsonp is used for crossdomain requests and this issue is not a real problem but I think that is strange...

thanks
Marco