keyboard event passed to a embed flashplayer have lower priority than a QAction shortcut keybinding

take this site for example http://show.shijie2.com/10000000 . After the flash content load, the bottom-left have a input control. With the example webkitwidgets/browser when you press key Backspace the keyevent trigger QAction first, make the browser go backward. but it should triger the flash input control's keyevent to delete a character.