window onunload is not working properly in Chrome browser Can any one help me

Question

I have written this code      function winUnload         alert  Unload Window        MyMethod       window onunload   function     winUnload        This code is working fine in IE and Firefox  But this code is not working in Chrome  Both the statements alert  Unload Window    and MyMethod    are not working

User · Answer

This works     var unloadEvent   function  e        var confirmationMessage    Warning  Leaving this page will result in any unsaved data being lost  Are you sure you wish to continue         e    window event  returnValue   confirmationMessage    Gecko   IE     return confirmationMessage    Webkit  Safari  Chrome etc     window addEventListener  beforeunload   unloadEvent

User · Answer

Armin s answer is so useful  thank you   2 is what s most important to know when trying to set up unload events that work in most browsers  you cannot alert   or confirm    but returning a string will generate a confirm modal   But I found that even with just returning a string  I had some cross-browser issues specific to Mootools  using version 1 4 5 in this instance   This Mootools-specific implementation worked great in Firefox  but did not result in a confirm popup in Chrome or Safari    window addEvent  beforeunload   function         return  Are you sure you want to leave this page          So in order to get my onbeforeonload event to work across browsers  I had to use the JavaScript native call    window onbeforeunload   function         return  Are you sure you want to leave this page        Not sure why this is the case  or if it s been fixed in later versions of Mootools

User · Answer

I know this is old but I found the way to make unload work using Chrome  window onbeforeunload   function        myFunction

User · Answer

You may try to use pagehide event for Chrome and Safari   Check these links   How to detect browser support for pageShow and pageHide   http   www webkit org blog 516 webkit-page-cache-ii-the-unload-event

User · Answer

The onunload event won t fire if the onload event did not fire  Unfortunately the onload event waits for all binary content  e g  images  to load  and inline scripts run before the onload event fires  DOMContentLoaded fires when the page is visible  before onload does  And it is now standard in HTML 5  and you can test for browser support but note this requires the  lt  DOCTYPE html gt   at least in Chrome   However  I can not find a corresponding event for unloading the DOM  And such a hypothetical event might not work because some browsers may keep the DOM around to perform the  restore tab  feature   The only potential solution I found so far is the Page Visibility API  which appears to require the  lt  DOCTYPE html gt

User · Answer

Please try window onbeforeunload instead for window onunload for chrome  You can also try calling onbeforeunload from the body gt  tag which might work in chrome  However  we do have a problem with unload function in chrome browser  please check location href does not work in chrome when called through the body window unload event

User · Answer

There are some actions which are not working in chrome  inside of the unload event  Alert or confirm boxes are such things   But what is possible  AFAIK     Open popups  with window open  - but this will just work  if the popup blocker is disabled for your site Return a simple string  in beforeunload event   which triggers a confirm box  which asks the user if s he want to leave the page    Example for  2     window  on  beforeunload   function         return  Your own message goes here            Demo  http   jsfiddle net PQz5k

[javascript] window.onunload is not working properly in Chrome browser. Can any one help me?

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