Arora hangs when displaying CUPS job webinterface

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* What steps will reproduce the problem?
0. Provide password authentication to the CUPS webinterface at some point
1. Try to cancel or release a job in the CUPS webinterface

* What is the expected output? What do you see instead?
Page should reload, action should be executed.
Instead, Arora hangs forever, apparently loading the website.
System log says: "[cupsd] pam_unix(cups:auth): authentication failure;
logname= uid=0 euid=0 tty=cups ruser= rhost=localhost  user=root"
CUPS logs: "cupsdAuthorize: pam_authenticate() returned 7 (Authentication
failure)!"

* What version of the product are you using? On what operating system?
Arora 0.10.1
Gentoo/Linux

* Please provide any additional information below.
Portage 2.2_rc46 (default/linux/amd64/10.0/desktop, gcc-4.4.2,
glibc-2.10.1-r0, 2.6.31-gentoo-r3 x86_64)
=================================================================               

System uname: Linux-2.6.31-gentoo-r3-x86_64-AMD_Athlon-tm-
Timestamp of tree: Wed, 28 Oct 2009 17:45:01 +0000                              

app-shells/bash:     4.0_p35                                                    

dev-java/java-config: 2.1.9-r1                                                  

dev-lang/python:     2.6.3, 3.1.1-r1                                            

dev-python/pycrypto: 2.0.1-r8                                                   

dev-util/cmake:      2.6.4-r3                                                   

sys-apps/baselayout: 2.0.1                                                      

sys-apps/openrc:     0.5.2-r1                                                   

sys-apps/sandbox:    2.2                                                        

sys-devel/autoconf:  2.13, 2.63-r1                                              

sys-devel/automake:  1.8.5-r3, 1.9.6-r2, 1.10.2, 1.11                           

sys-devel/binutils:  2.20                                                       

sys-devel/gcc-config: 1.4.1                                                     

sys-devel/libtool:   2.2.6a                                                     

virtual/os-headers:  2.6.30-r1                                                  

ACCEPT_KEYWORDS="amd64 ~amd64"                                                  

CBUILD="x86_64-pc-linux-gnu"                                                    

CFLAGS="-pipe -O2 -march=athlon64-sse3 -fstack-protector -ftree-vectorize"      

CHOST="x86_64-pc-linux-gnu"                                                     

CXXFLAGS="-pipe -O2 -march=athlon64-sse3 -fstack-protector -ftree-
LANG="en_GB.UTF-8"
LDFLAGS="-Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed"
[...]
Unset:  CPPFLAGS, CTARGET, FFLAGS, INSTALL_MASK, LC_ALL,
PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS

Original issue reported on code.google.com by devuran...@gmx.net on 28 Oct 2009 at 10:14

[GoogleCodeExporter]

PS: When using Konqueror 4.3.2 instead of Arora 0.10.1, the issue does not 
appear.

Original comment by devuran...@gmx.net on 28 Oct 2009 at 10:15