272350 - Permission denied to get property XULElement.selectedIndex

Status: VERIFIED DUPLICATE of bug 236791

(Firefox :: General, defect)

Description

[Keith]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0

On a secure page of a db application (I write the html/javascript) this error is
reported in JavaScript Console (however it works ok in IE and FireFox):
Error: [Exception... "'Permission denied to get property
XULElement.selectedIndex' when calling method:
[nsIAutoCompletePopup::selectedIndex]"  nsresult: "0x8057001e
(NS_ERROR_XPC_JS_THREW_STRING)"  location: "JS frame :: https://[secure page]::
vPIN :: line 334"  data: no]
Source File: https://[secure page] Line: 334

...
The line 334 snippet is:
<FORM NAME="Client" ACTION="/cgi/bin/mis.cgi" METHOD="POST" >
<SCRIPT LANGUAGE="JavaScript">
function vPIN(PIN)
{
  if ( PIN == "" )
  { alert("!!!  WARNING  !!!\nThis client does not belong to a Clinic that has a
valid Contract for the Insurance Type.\nOr the Insurance for the client has not
been setup.\nUpdates will not be sent until they do."); }
  return true;
}
</SCRIPT>

<TABLE CLASS="siteheading" >...

End snippet
The alert comes up fine and the vPIN function is called from an onload.

I cannot cut the code out and create a subset with this snippet in it and still
reproduce the error.  Some of the menu functions/javascript funtions or others
may be affecting it.
I was hopeing the reference would tell you what's going on?

Reproducible: Always
Steps to Reproduce:
1. Confidential / secure
2.
3.

Actual Results:  
the details above

Expected Results:  
It works ok.

Comment 1

[Jesse Ruderman]

Probably a dup of bug 236791.

Comment 2

[Martin Lidgard]

Attachment: Contains a concise code for generating the bug

Pressing a key while in the form text field generates an onkeypress event
handled by the keyHandler(evnt) function. When showing an alert with the event
type, an exception is thrown.

Comment 3

[Oleg Marchuk]

I has the error on this code:

<input name="my_name" value="" onFocus="blur();">

Comment 4

[PikeUK]

Bug 236791 mentions that the error is also caused by an alert() so I'm marking
this bug as a duplicate of that one.

*** This bug has been marked as a duplicate of 236791 ***

Comment 5

[Henrik Skupin [:whimboo][⌚️UTC+1]]

v.