1 week ago it worked perfectly. I open form from the page, when I close it, the sustem bounce me out to previouse page.

1 week ago it worked perfectly. I open form from the page, when I close it, the sustem bounce me out to previouse page.

You can see it in your standard application "sales management". 
Click "All Accounts". click the button "View" (custom action). On the page click "New Contact" or "New Task".