Bug 2483236

Summary: QtWebView browser applications (like slitherer) cannot properly open native HTML dropdowns
Product: [Fedora] Fedora Reporter: Neal Gompa <ngompa13>
Component: qt6-qtwebengineAssignee: Jan Grulich <jgrulich>
Status: CLOSED ERRATA QA Contact:
Severity: urgent Docs Contact:
Priority: unspecified    
Version: 45CC: jgrulich, kde-sig, kparal, rhbz, robatino
Target Milestone: ---Keywords: CommonBugs, Desktop, Regression
Target Release: ---   
Hardware: x86_64   
OS: Linux   
URL: https://kojipkgs.fedoraproject.org//packages/Fedora-KDE-Desktop-Live/Rawhide/20260504.n.0/images/Fedora-KDE-Desktop-Live-Rawhide-20260504.n.0.x86_64.iso
Whiteboard: https://discussion.fedoraproject.org/t/common-issue/192590 AcceptedBlocker
Fixed In Version: Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-09-05 16:17:57 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2406952    

Description Neal Gompa 2026-05-29 12:32:01 UTC
Since the rebase to Qt 6.11, it appears that accessing native HTML dropdown menus (dropdown comboboxes) can cause the application to crash. 

This has significant negative effects, particularly if someone wants to use custom storage partitioning through Cockpit during installation.

Reproducible: Always

Steps to Reproduce:
1. Install slitherer
2. Launch slitherer as such: slitherer --windowed "https://www.patternfly.org/components/forms/form-select"
3. Open dropdown menus to attempt to select something
Actual Results:
Browser window crashes

Expected Results:
Drop down opens and selection is possible

Comment 1 Kamil Páral (Red Hat) 2026-05-29 12:39:47 UTC
As a consequence, Anaconda crashes in Cockpit storage editor in F44 and Rawhide under all environments except Workstation (where it uses Firefox, not slitherer). See bug 2404424#c24 .

Reproducer:
Run Anaconda on KDE/XFCE/etc Live, go to Storage Editor, pick a partition, click Format. In the dialog, use any drop-down (e.g. Type), and start opening it and selecting values repeatedly. After a couple of tries, Anaconda crashes.

Workaround:
Before running anaconda, edit /etc/anaconda/profile.d/fedora.conf and change `webui_web_engine = slitherer` to `webui_web_engine = firefox`. Run `liveinst` to start anaconda.

Comment 2 Neal Gompa 2026-05-29 12:46:14 UTC
So in the latest Rawhide environment I've got, it doesn't crash, but the drop-down flickers and doesn't persist, so I can't select anything.

Comment 3 Kamil Páral (Red Hat) 2026-05-29 13:00:13 UTC
A common issue: https://discussion.fedoraproject.org/t/common-issue/192590

Comment 4 Kamil Páral (Red Hat) 2026-05-29 13:01:34 UTC
Proposing as F45 beta blocker:
https://fedoraproject.org/wiki/Fedora_45_Beta_Release_Criteria#Custom_partitioning

(Note that similar bug 2404424 was accepted as a blocker previously).

Comment 5 Neal Gompa 2026-05-30 05:06:36 UTC
I've submitted an upstream bug to Qt: https://qt-project.atlassian.net/browse/QTBUG-147154

Comment 6 Adam Williamson (Red Hat non-Fedora) 2026-06-03 00:30:25 UTC
Note we'd like to add an openQA test to prevent future bugs like this, but we kinda can't until this is fixed, as we need the full process to *work* in order to verify the test. https://forge.fedoraproject.org/quality/os-autoinst-distri-fedora/issues/561#issuecomment-794938

Comment 7 Adam Williamson (Red Hat non-Fedora) 2026-08-16 21:05:44 UTC
+4 in https://forge.fedoraproject.org/quality/blocker-review/issues/2136 , marking accepted.

Comment 8 Aoife Moloney 2026-08-17 14:43:33 UTC
This bug appears to have been reported against 'rawhide' during the Fedora Linux 45 development cycle.
Changing version to 45.

Comment 9 Fedora Update System 2026-09-02 21:18:48 UTC
FEDORA-2026-bfd6244504 (slitherer-0~git20251108.d230dba-6.fc45) has been submitted as an update to Fedora 45.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-bfd6244504

Comment 10 Fedora Update System 2026-09-03 02:13:35 UTC
FEDORA-2026-bfd6244504 has been pushed to the Fedora 45 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-bfd6244504`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-bfd6244504

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 11 Kamil Páral (Red Hat) 2026-09-03 08:15:33 UTC
(In reply to Fedora Update System from comment #9)
> FEDORA-2026-bfd6244504 (slitherer-0~git20251108.d230dba-6.fc45) has been
> submitted as an update to Fedora 45.
> https://bodhi.fedoraproject.org/updates/FEDORA-2026-bfd6244504

Fixes dropdowns

Comment 12 Fedora Update System 2026-09-05 16:17:57 UTC
FEDORA-2026-bfd6244504 (slitherer-0~git20251108.d230dba-6.fc45) has been pushed to the Fedora 45 stable repository.
If problem still persists, please make note of it in this bug report.