Microsoft JScript runtime error: Object required (IE7)

[spwicker]

When closing the browser (IE7 running with the "disable script debugging" setting unchecked) on a page with fusion charts on it, the browser throws multiple runtime errors:

 

 

 

A Runtime Error has occurred.

 

Do you wish to Debug?

 

Line: 52

 

Error: Object required

 

 

 

Debugging through visual studio I get the following:

 

 

 

function __flash__removeCallback(instance, name) {

 

instance[name] = null;

 

}

 

 

 

where the values are:

 

--> intance = null

 

--> name = "setDataXML"

 

--> output = "Microsoft JScript runtime error: Object required"

 

 

 

In the callstack, the call to the above function is as follows:

 

 

 

__flash__removeCallback(document.getElementById(""), "setDataXML");

 

 

 

Seems like for each chart on the page it throws exactly 4 runtime errors. (This is the enterprise version 3.0 charts)

 

 

 

Any ideas on how to fix this would be greatly appreciated. Again, you will only see this bug if IE is running with script debugging enabled.

 

 

 

(I also noticed that this is only an issue when you have registerWithJS = 1)

Edited March 5, 2009 by Guest

[Rahul Kumar]

Hi,

 

Could you please send us your code at [email protected]

[spwicker]

Our code here is pretty messy. But I think I found root cause of this bug. There's a thread on it here:

 

 

 

http://bugs.adobe.com/jira/browse/FP-529

 

 

 

We are using jQuery which might be interfering with the cleanup processes of the flash files in IE. It seems like this would be a simple fix by just changing the __flash__removeCallback method to be like so:

 

 

 

function __flash__removeCallback(instance, name)

 

{

 

if ( instance )

 

{

 

instance[name] = null;

 

}

 

}

[spwicker]

After doing some digging, I found this in another forum post which seems to fix my problem in IE7:

 

 

 

window.attachEvent("onbeforeunload",fcRemoveChart);

 

function fcRemoveChart() {

 

var arr = document.all.tags("object");

 

if (arr && arr.length) {

 

for (var i=arr.length-1; 0<=i; i--) {

 

arr.removeNode(true);

 

}

 

}

 

}