permission denied to set property window.onunload

**Grant Wagner** · Jul 20 '05, 11:36 AM

Re: permission denied to set property window.onunload

kaeli wrote:
[color=blue]
> Hey guys,
>
> This error occurs ONLY in Netscape 7.0. Not in 7.1. So, I think it's a
> bug. Buuuut...
>
> Has anyone had this problem or know of a fix?
>
> When attempting to have an onunload function set with "window.onload= ",
> the error comes up
> "permission denied to set property window.onunload "
>
> I can't find a thing on this one. Setting it with the normal "<body
> onunload" works fine. But isn't a great thing for me to do, since the
> onload is part of a very large menu script.
>
> Here's a test page to illustrate the problem. Netscape 7.0 has a problem
> with this. 7.1 does not. IE is fine, too.
>
> <html>
> <head>
> <title> New Document </title>
> <script>
> window.onunload ="alert('bye bye');"
> </script>
> </head>
>
> <body>
> test
> </body>
> </html>[/color]

Don't assign a string as an event handler.

window.onunload = function() {
alert('bye, bye');
}

works, as would:

function myOnunload() {
alert('bye, bye');
}
window.onunload = myOnunload;

--
| Grant Wagner <gwagner@agrico reunited.com>

* Client-side Javascript and Netscape 4 DOM Reference available at:
*

http://devedge.netscape.com/library/manuals/2000/javascript/1.3/reference/frames.html

* Internet Explorer DOM Reference available at:
*

Microsoft Learn: Build skills that open doors in your career

http://msdn.microsoft.com/workshop/author/dhtml/reference/dhtml_reference_entry.asp

Gain technical skills through documentation and training, earn certifications and connect with the community

* Netscape 6/7 DOM Reference available at:
* http://www.mozilla.org/docs/dom/domref/
* Tips for upgrading JavaScript for Netscape 7 / Mozilla
* http://www.mozilla.org/docs/web-deve...upgrade_2.html

**kaeli** · Jul 20 '05, 11:36 AM

Re: permission denied to set property window.onunload

In article <3FA94CED.DA2C7 78@agricoreunit ed.com>,
gwagner@agricor eunited.com enlightened us with...[color=blue]
> Don't assign a string as an event handler.
>[/color]

The original didn't.
This was just for testing.

You don't want to see the whole thing. :)

Here's the one line from the original source, in case it makes sense by
itself.

ScLdAgainWin.on unload=UnLoaded ;

(UnLoaded is a defined function - again, this code works fine in all
other target browsers, including IE5+, NN6.2, and NN7.1)

If you want the whole source, it's HVMenu from dynamicdrive.co m. I've
been using it for some time, but it was only tested up to NN6.2. I
checked for updates, but there were none. I may decide to contact the
author, but if this is a browser bug, I don't want to bother.

-------------------------------------------------
~kaeli~
Jesus saves, Allah protects, and Cthulhu
thinks you'd make a nice sandwich.

http://www.ipwebdesign.net/wildAtHeart

http://www.ipwebdesign.net/kaelisSpace

-------------------------------------------------

**Richard Cornford** · Jul 20 '05, 11:37 AM

Re: permission denied to set property window.onunload

"kaeli" <tiny_one@NOSPA M.comcast.net> wrote in message
news:MPG.1a130e cd2cda7c7598995 0@nntp.lucent.c om...
<snip>[color=blue]
> ScLdAgainWin.on unload=UnLoaded ;[/color]
<snip>

Is this assigning a reference to a function defined in the current
window to a property of a pop-up?

Richard.

**kaeli** · Jul 20 '05, 11:38 AM

Re: permission denied to set property window.onunload

In article <bocd0h$ate$1$8 300dec7@news.de mon.co.uk>,
Richard@litotes .demon.co.uk enlightened us with...[color=blue]
> "kaeli" <tiny_one@NOSPA M.comcast.net> wrote in message
> news:MPG.1a130e cd2cda7c7598995 0@nntp.lucent.c om...
> <snip>[color=green]
> > ScLdAgainWin.on unload=UnLoaded ;[/color]
> <snip>
>
> Is this assigning a reference to a function defined in the current
> window to a property of a pop-up?
>[/color]

No, the code is running from a frameset. It is addressing the main
frame. That doesn't matter, though, since it doesn't work in a regular
page, either.

It doesn't work no matter where you put it, which was what I was showing
in the little test page I posted. It won't let you assign anything to
onunload with script, it has to be in the body tag. Again, this works in
every browser I need it to work in except NN7.0. NN7.1 it works fine.
NN7.0 throws a security exception.

-------------------------------------------------
~kaeli~
Jesus saves, Allah protects, and Cthulhu
thinks you'd make a nice sandwich.

http://www.ipwebdesign.net/wildAtHeart

http://www.ipwebdesign.net/kaelisSpace

-------------------------------------------------

**Richard Cornford** · Jul 20 '05, 11:38 AM

Re: permission denied to set property window.onunload

"kaeli" <tiny_one@NOSPA M.comcast.net> wrote in message
news:MPG.1a1411 3cdf1e736598995 3@nntp.lucent.c om...
<snip>[color=blue]
>It doesn't work no matter where you put it, which was what I
>was showing in the little test page I posted. It won't let
>you assign anything to onunload with script, it has to be in
>the body tag.[/color]

As Grant said, your original test page wasn't going to work because it
was assigning a string instead of a function. But testing:-

<html>
<head>
<title></title>
<script>
function UnLoaded(){aler t('bye bye');}
window.onunload =UnLoaded;
</script>
</head>
<body>
test
</body>
</html>

- worked with (Windows) Netscape 7.00 & 7.02 both from the local file
system and over an HTTP server.

If all else fails, have you considered branching on
window.addEvent Listener and using that for onunload if available?

Richard.

**kaeli** · Jul 20 '05, 11:38 AM

Re: permission denied to set property window.onunload

In article <bodo0n$sfb$1$8 300dec7@news.de mon.co.uk>,
Richard@litotes .demon.co.uk enlightened us with...[color=blue]
>
> As Grant said, your original test page wasn't going to work because it
> was assigning a string instead of a function. But testing:-
>
> <html>
> <head>
> <title></title>
> <script>
> function UnLoaded(){aler t('bye bye');}
> window.onunload =UnLoaded;
> </script>
> </head>
> <body>
> test
> </body>
> </html>
>
> - worked with (Windows) Netscape 7.00 & 7.02 both from the local file
> system and over an HTTP server.
>[/color]

Not on ours.
I have 2 users who test for me, and they have 7.0, and this gave the
same error.

I wonder if it's something in their settings...
Neither has a user.js file that I could find. I know people can turn off
onunload with a setting in that file, but neither of them have that.
[color=blue]
> If all else fails, have you considered branching on
> window.addEvent Listener and using that for onunload if available?
>[/color]

I already did a workaround, but it was icky. I put the function call in
the onunload event of each body tag of every damn page (thank goodness
for dreamweaver templates!).

addeventlistene r for onunload did the same error for their browsers.

This wouldn't be that big of a deal if we didn't have a ton of Netscape
users. *sigh*

-------------------------------------------------
~kaeli~
Jesus saves, Allah protects, and Cthulhu
thinks you'd make a nice sandwich.

http://www.ipwebdesign.net/wildAtHeart

http://www.ipwebdesign.net/kaelisSpace

-------------------------------------------------

permission denied to set property window.onunload

permission denied to set property window.onunload

Comment

Comment

Comment

Comment

Comment

Comment