self-closing textarea not recognized

[Lucio Crusca]

Binary package hint: firefox-3.5

Ubuntu 9.10 up-to-date here.

Firefox does not recognize <textarea /> as <textarea></textarea>. Workaround: don't use the self-closing tag, use the long version instead.

Bug example (XHTML 1.1 valid): http://www.virtual-bit.com/textareaexample.php
Intended behavior (workaround, still XHTML 1.1 valid): http://www.virtual-bit.com/textareaworkaround.php

I don't mark this as a security problem because I don't know if there's a memory corruption going on here. Please someone with more skills should investigate further to ensure this has no security implications.

$ apt-cache policy firefox
firefox:
  Installato: 3.5.9+nobinonly-0ubuntu0.9.10.1
  Candidato: 3.5.9+nobinonly-0ubuntu0.9.10.1
  Tabella versione:
 *** 3.5.9+nobinonly-0ubuntu0.9.10.1 0
        500 http://it.archive.ubuntu.com karmic-updates/main Packages
        500 http://security.ubuntu.com karmic-security/main Packages
        100 /var/lib/dpkg/status
     3.5.3+build1+nobinonly-0ubuntu6 0
        500 http://it.archive.ubuntu.com karmic/main Packages

ProblemType: Bug
Architecture: i386
Date: Mon Apr 26 08:55:18 2010
DistroRelease: Ubuntu 9.10
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
NonfreeKernelModules: nvidia
Package: firefox 3.5.9+nobinonly-0ubuntu0.9.10.1
PackageArchitecture: all
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, user)
 LANG=it_IT.UTF-8
ProcVersionSignature: Ubuntu 2.6.31-20.58-generic
SourcePackage: firefox-3.5
Uname: Linux 2.6.31-20-generic i686
XsessionErrors:
 (gnome-settings-daemon:2451): GLib-CRITICAL **: g_propagate_error: assertion `src != NULL' failed
 (gnome-settings-daemon:2451): GLib-CRITICAL **: g_propagate_error: assertion `src != NULL' failed
 (polkit-gnome-authentication-agent-1:2698): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed
 (nautilus:2641): Eel-CRITICAL **: eel_preferences_get_boolean: assertion `preferences_is_initialized ()' failed
 (firefox:3304): GLib-WARNING **: g_set_prgname() called multiple times