Bug 120820 - [test-case] khtml ecma behaviour differs when style="display:none"
Summary: [test-case] khtml ecma behaviour differs when style="display:none"
Status: RESOLVED DUPLICATE of bug 71809
Alias: None
Product: konqueror
Classification: Applications
Component: khtml ecma (show other bugs)
Version: 3.5
Platform: unspecified FreeBSD
: NOR normal
Target Milestone: ---
Assignee: Konqueror Developers
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2006-01-26 16:50 UTC by Alexander Stepanov
Modified: 2007-09-08 02:29 UTC (History)
0 users

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Description Alexander Stepanov 2006-01-26 16:50:40 UTC 
Version:           3.5 (using KDE 3.5.0, compiled sources)
Compiler:          gcc version 3.4.4 [FreeBSD] 20050518
OS:                FreeBSD (i386) release 6.0-RELEASE

Example:

<html>
<body>

 <iframe id="visible"></iframe>
 <iframe style="display:none" id="hidden"></iframe>

 <a href="http://www.google.com/"
  onclick="document.getElementById('visible').contentDocument.location.href='http://www.kde.org/';
  return false">Replace visible</a><br>

 <a href="http://www.google.com/"
  onclick="document.getElementById('hidden').contentDocument.location.href='http://www.kde.org/';
  return false">Replace hidden</a>

</body>
</html>

I see here two bugs:

1. ECMAScript does not see and/or can not assign hidden element's properties.

2. ECMAScript nor ignores error, nor returns false in case of error, hense "onclick" returns true and <a> follows its href.
Comment 1 Martin Fitzpatrick 2007-01-09 22:13:15 UTC 
Bug confirmed on KDE 3.5.5 / Kubuntu 6.10.  Example test case available give above now available online at http://www.mutube.com/x/kde/bug120820.html 

This bug seems to be related to #71809 although I have been unable to reproduce the visible/hidden difference mentioned on that bug.
Comment 2 Alexander Stepanov 2007-01-10 07:39:55 UTC 
KDE 3.5.5 / FreeBSD 6.2-RC2.

> I have been unable to reproduce the visible/hidden difference

Browser should visibly do nothing when "Replace hidden" is clicked but goes to google instead.

The problem is iframe object has no contentDocument property when hidden. Simple test case:

<html>
<body>

 <iframe id="test"></iframe><br>
 <a href="#"
  onclick="object=document.getElementById('test').contentDocument;
  alert(object); return false">Get object</a> |

 <a href="#"
  onclick="document.getElementById('test').style.display='none';
  return false">Hide iframe</a> |

 <a href="#"
  onclick="document.getElementById('test').style.display='';
  return false">Show iframe</a>

</body>
</html>


1. Click 'Get object'. Note alert text. Looks good.
2. Click 'Hide iframe'.
3. Click 'Get object'. Note alert text. 'null' in my case.
4. Click 'Show iframe'.
5. Click 'Get object'. Note alert text. Looks good.
6. Compare with Mozilla
Comment 3 Martin Fitzpatrick 2007-01-10 20:36:42 UTC 
The visible/hidden difference I can't reproduce is in the /other/ bug not this one! This bug's behaviour agreed & confirmed.
Comment 4 Maksim Orlovich 2007-09-08 02:29:26 UTC 

*** This bug has been marked as a duplicate of 71809 ***