Ubuntu
firefox-3.0 package

Changing innerHTML of the <div> tag, which is inside <a> tag adds automatically <a> tag around the text.

Bug #286289 reported by Nikita
4
Affects Status Importance Assigned to Milestone
Mozilla Firefox
Fix Released
Low
firefox-3.0 (Ubuntu)
Triaged
Undecided
Unassigned

Bug Description

Binary package hint: firefox-3.0

Changing innerHTML of the <div> tag, which is inside <a> tag adds automatically <a> tag around the text.
Happens on windows' version too.

See example attached.

ProblemType: Bug
Architecture: i386
Date: Mon Oct 20 11:36:17 2008
DistroRelease: Ubuntu 8.04
NonfreeKernelModules: fglrx
Package: firefox-3.0 3.0.3+build1+nobinonly-0ubuntu0.8.04.1
PackageArchitecture: i386
ProcEnviron:
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: firefox-3.0
Uname: Linux 2.6.24-19-generic i686

Tags: apport-bug
Revision history for this message
In , Phil-crosby (phil-crosby) wrote :

User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-US; rv:1.8.0.7) Gecko/20060911 Camino/1.0.3
Build Identifier:

This page doesn't validate, so I'm not sure what the expected behavior really is, but the current mozilla behavior is very curious.

Have a look at this example. Comments in the source explain actual/expected behaviors:
http://philisoft.com/bugs/j/moz/nestedb.html

Workaround is to use <div> tags, not <b>. The only reason I stumbled upon this is because I've seen some "rounded corner" tutorials that use nested <b> tags for the markup, and I've used nested <b> tags on some of my sites without problems. This behavior really had me scratching my head for hours.

Reproducible: Always

Steps to Reproduce:
1.
2.
3.

Revision history for this message
In , Phil-crosby (phil-crosby) wrote :

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
 "http://www.w3.org/TR/html4/strict.dtd">
<html>
<!--
 this page doesn't validate; w3c doesn't think you can nest <b> tags. Not sure what the expected behavior should be.
 Filed as: https://bugzilla.mozilla.org/show_bug.cgi?id=381808
-->
<head>

<script type="text/javascript">
function init(){
 document.getElementById("msg").innerHTML="section 1";

 /* produces the DOM tree (use firebug to inspect):

 <b><b><b>
  <div id="msg">
   <b><b><b>section 1</b></b></b>
  </div>
 </b></b></b>

 instead of the expected:

 <b><b><b>
  <div id="msg">
   section 1
  </div>
 </b></b></b>

 */
}
</script>

<style>
/* these style declarations are optional */
b{
 display:block;
 font-weight:normal;
}
</style>
</head>

<body onload="init();">

 <!-- these two DOM trees will be loaded differently, because the first div has its
  contents set with Javascript through innerHTML, while the second doesn't.
 -->
 <b><b><b>
  <div id="msg"></div>
 </b></b></b>

 <b><b><b>
  <div id="msg2">section 2</div>
 </b></b></b>
</body>

Revision history for this message
In , Phil-crosby (phil-crosby) wrote :

Created attachment 265879
testcase

meant to attach as a file

Revision history for this message
In , Jruderman (jruderman) wrote :

The problem isn't the nesting of <b> tags, but putting a <div> (a block element) "inside" a <b> (an inline element). See http://ln.hixie.ch/?start=1138169545&count=1.

What this testcase shows is the opposite of what I'd expect, though. Hmm...

Revision history for this message
In , Jruderman (jruderman) wrote :

Simply doing

  document.getElementById("msg").innerHTML += "";

causes an extra set of <b>'s to appear inside the div. I'm pretty sure that's wrong.

Revision history for this message
In , Phil-crosby (phil-crosby) wrote :

In this test case, <b> is made display:block, which should make any issues about inline elements having nested block elements void.

Revision history for this message
In , Jruderman (jruderman) wrote :

For layout, sure, but not for HTML parsing...

Revision history for this message
In , Jruderman (jruderman) wrote :

Created attachment 265882
Jesse's testcase

Clicking the button just does
  (...).innerHTML += ''
and yet it creates new <big> elements and changes the page's appearance.

Revision history for this message
In , Bzbarsky (bzbarsky) wrote :

There are two separate concepts of block vs inline. One in CSS and one in HTML. They don't match.

In any case, the point is that in HTML <b> is not allowed to contain <div> (so the <b> needs to get closed), but the text needs to be bold for compat so we do residual style handling. HTML5 is going to define a different method of doing this anyway, so at that point we'll need to revisit this bug.

Revision history for this message
In , Jruderman (jruderman) wrote :

*** Bug 443270 has been marked as a duplicate of this bug. ***

Revision history for this message
Nikita (nikita-petrovs) wrote :
Revision history for this message
Alexander Sack (asac) wrote : Re: [Bug 286289] [NEW] Changing innerHTML of the <div> tag, which is inside <a> tag adds automatically <a> tag around the text.

On Mon, Oct 20, 2008 at 08:37:35AM -0000, Nikita wrote:
> Public bug reported:
>
> Binary package hint: firefox-3.0
>
> Changing innerHTML of the <div> tag, which is inside <a> tag adds automatically <a> tag around the text.
> Happens on windows' version too.

Thanks. This bug is at best dealt with upstream. could you open a bug
in bugzilla.mozilla.org against the Core -> Content component and give
us the bug id? thanks.

 status confirmed
 subscribe me

 - Alexander

Revision history for this message
Nikita (nikita-petrovs) wrote : Re: [Bug 286289] [NEW] Changing innerHTML of the <div> tag, which is inside <a> tag adds automatically <a> tag around the text.

Here you go, submitted the bug, id is 460838.

https://bugzilla.mozilla.org/show_bug.cgi?id=460838

--
Sincerely,
N.

On Mon, Oct 20, 2008 at 8:13 PM, Alexander Sack <email address hidden> wrote:

> On Mon, Oct 20, 2008 at 08:37:35AM -0000, Nikita wrote:
> > Public bug reported:
> >
> > Binary package hint: firefox-3.0
> >
> > Changing innerHTML of the <div> tag, which is inside <a> tag adds
> automatically <a> tag around the text.
> > Happens on windows' version too.
>
> Thanks. This bug is at best dealt with upstream. could you open a bug
> in bugzilla.mozilla.org against the Core -> Content component and give
> us the bug id? thanks.
>
> status confirmed
> subscribe me
>
> - Alexander
>
> --
> Changing innerHTML of the <div> tag, which is inside <a> tag adds
> automatically <a> tag around the text.
> https://bugs.launchpad.net/bugs/286289
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in "firefox-3.0" source package in Ubuntu: Confirmed
>
> Bug description:
> Binary package hint: firefox-3.0
>
> Changing innerHTML of the <div> tag, which is inside <a> tag adds
> automatically <a> tag around the text.
> Happens on windows' version too.
>
> See example attached.
>
> ProblemType: Bug
> Architecture: i386
> Date: Mon Oct 20 11:36:17 2008
> DistroRelease: Ubuntu 8.04
> NonfreeKernelModules: fglrx
> Package: firefox-3.0 3.0.3+build1+nobinonly-0ubuntu0.8.04.1
> PackageArchitecture: i386
> ProcEnviron:
>
> PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
> LANG=en_US.UTF-8
> SHELL=/bin/bash
> SourcePackage: firefox-3.0
> Uname: Linux 2.6.24-19-generic i686
>

Revision history for this message
In , Jruderman (jruderman) wrote :

*** Bug 460838 has been marked as a duplicate of this bug. ***

Bug Watch Updater (bug-watch-updater)
Changed in firefox:
status: Unknown → Invalid
Alexander Sack (asac)
Changed in firefox:
status: Invalid → Unknown
Changed in firefox-3.0:
status: Confirmed → Triaged
Bug Watch Updater (bug-watch-updater)
Changed in firefox:
status: Unknown → Confirmed
Bug Watch Updater (bug-watch-updater)
Changed in firefox:
status: Confirmed → Fix Released
Bug Watch Updater (bug-watch-updater)
Changed in firefox:
importance: Unknown → Low
Revision history for this message
In , Jared-easterday (jared-easterday) wrote :

I'm new to reporting, or commenting on bugs in bugzilla, but I'm still experiencing this issue with divs that are wrapped in anchor tags.

<a>
    <div>
       <p>Text</p>

    </div>
</a>

Revision history for this message
In , Jared-easterday (jared-easterday) wrote :

...didn't mean to submit my comment yet. I know it's not semantic markup, but I notice this doesn't happen in other browsers. Should I seek a different way to mark up my page, or should I hope for a fix for this?

Thanks.

Revision history for this message
In , R-bugs-h (r-bugs-h) wrote :

Jiert, which version of Firefox did you use for testing?
If 3.x, please try something newer, maybe even a nightly FF4 build
http://nightly.mozilla.org/.

Revision history for this message
In , Jared-easterday (jared-easterday) wrote :

3.6.10. Thanks Olli, I'll see if FF4 does the trick.

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