Disable back space key for browser based AS3 application

this is insa开发者_Go百科nely annoying problem:

AS3 full screen application based on ADOBE FLEX 4, text field. User types something in text field, and then starts clicking backspace many many times to remove what he just wrote, and for some reason, instead of removing characters from text field it tells browser to GO BACK and user navigates away. Why?! Please, please help, this is so terrible. My users are losing important unsaved this is data while using my application!

i am using safari browser PLEASE HELP.

Wow, this is terrible, I am so irritated, it happens every single time

It is possible that the focus is lost from your text field when hitting the backspace multiple times (check if you are firing some events on the text field that may cause this), which causes the main window to take focus and trigger 'Back' on the browser.

The root of the problem is that the browser carries out keyboard shortcuts REGARDLESS of the flash app having the focus or not. From what I heard this problem does not exist on Safari's for Mac, only Safari for Windows.

I would check to see what browser you are in and then create a popup saying you this app does NOT work on Safari browser ON windows.

Scratching head*
Well maybe if HAD to solve this, I would use the ExternalInterface to interact with Safari or javascript to PREVENT the history back button from getting applied. So it won't go back to an old page. That is what I would look into.