onbeforeunload - How to remove prompt on unload event using javascript - Stack Overflow

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How can I remove prompt on unload event using javascript? thanks in advance...

hm, I don't want to show the prompt when firing the custom function for the unlaod event of the body... Is it possible? so here's my code:

window.onbeforeunload = function()
{
    //cancel the unload
            //cancel prompt
}

How can I remove prompt on unload event using javascript? thanks in advance...

hm, I don't want to show the prompt when firing the custom function for the unlaod event of the body... Is it possible? so here's my code:

window.onbeforeunload = function()
{
    //cancel the unload
            //cancel prompt
}

• javascript
• onbeforeunload

Share Improve this question Follow edited May 18, 2011 at 8:56 kazinix asked May 18, 2011 at 8:47 kazinixkazinix 30.1k3636 gold badges111111 silver badges162162 bronze badges 1

• Please clarify your question. – ThiefMaster Commented May 18, 2011 at 8:49

Add a ment  | 

2 Answers 2

Sorted by: Reset to default 9

Make sure your event handler doesn't have a return statement in it. Returning from the function triggers the conformation message.

Update based on the code ments in the edited question: If the user does something to leave the page, then you can tell the browser to ask them if they are sure. You cannot silently prevent them. If the user wishes to leave the page, then they can do so (dodgy sites full of adverts and/or malware would love it to be otherwise, thankfully it isn't)

Most certainly NOT impossible. All you have to do to suppress the prompt is omit the "return" statement. Returning any value will cause the prompt to fire. Example:

           window.onbeforeunload = function saveAllData()
            {
                //Invoke AJAX method to save DataTable in database
                [classname].SaveDataTable();
                //return true;                      //ment out 'return' to suppress prompt
            }

            function SaveDataTable_Callback(response) 
            {
                //alert(response);
            }

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