Deeplinking does not work

do you guys agree?
I’ve used swf address many times but it never works. simple pages seem to work but when it gets bigger and more dynamic it doesn’t. I can get it so that once the swf loads on the html and user navigates, the browser url will change like #/abc
however, if I try a deeplink url fresh on a browser, it will load only the initial page.
I googled this and asked other developers and they seem to have the same issue.
Has anybody found a solution for this?