Article ID: 887741
Article Last Modified on 11/12/2004
APPLIES TO
- Microsoft Internet Explorer 5.01
- Microsoft Internet Explorer 5.5
- Microsoft Internet Explorer (Programming) 6.0
SUMMARY
'
Security Update 834707 includes a change to the way Internet Explorer handles function pointers. This change in functionality occurs when an event handler points directly to a Document Object Model (DOM) function. This article describes the issue and provides several workarounds.
SYMPTOMS
Microsoft Internet Explorer does not execute client-side code that is associated with an event handler that is directly set to a DOM function.
CAUSE
The MS04-038 security update includes a change to the way that Internet Explorer handles function pointers. This change in functionality occurs when an event handler points directly to a DOM function:
on<event> = DOM function pointer
WORKAROUND
To work around this change in Internet Explorer's functionality, use one of the following methods:
Directly invoke the function by using JavaScript:
Original code:<A href=# onclick=window.close>Close this window</A>
Fixed code:
<A href=# onclick="window.close()">Close this window</A>
Store the function pointer in a variable and define another function to invoke the variable. The following examples use the onclick event to close a window:
Original code:<A href=# onclick=window.close>Close this window</A>
Fixed code:
<script> var my_funcptr = window.close; function FunctionPointerInvoker() { my_funcptr(); } </script> <A href=# onclick="FunctionPointerInvoker()">Close this window</A>
STATUS
This behavior is by design.
REFERENCES
For additional information about the MS04-038 security update, click the following article number to view the article in the Microsoft Knowledge Base:
834707 MS04-038: Cumulative security update for Internet Explorer
Keywords: kbtshoot kbprb KB887741