Bug 515640

Summary:	WebBrowserWidget is unable to show Intranet content due ERR_CERT_AUTHORITY_INVALID via QtWebEngine
Product:	[Plasma] plasmashell	Reporter:	Tom Atkinson <tom>
Component:	Web Browser widget	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	CONFIRMED ---
Severity:	wishlist	CC:	kdedev
Priority:	NOR
Version First Reported In:	6.5.5
Target Milestone:	1.0
Platform:	CachyOS
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	Web Browser Widget

Description Tom Atkinson 2026-02-06 16:55:17 UTC

Created attachment 189292 [details]
Web Browser Widget

Unable to access LAN / Intranet page using Web Browser widget due to policy re: self signed cert.

Fair call this is a feature request and probably inside a QT component QtWebEngine. I can workaround using virtual desktops and a Firefox window. Apologies if this needs to be closed straight away. I made a feature request post at:

https://discuss.kde.org/t/feat-req-can-webbrowserwidget-please-possibly-have-a-preference-or-setting-to-ignore-self-signed-cert-warnings-in-qtwebengine-re-err-cert-authority-invalid/44076

STEPS TO REPRODUCE
1. Right click desktop to enter edit mode
2. Click button to add widget 
3. Choose Web Browser Widget and try to set to page with self signed secure cert

OBSERVED RESULT

Page display is blocked due to strict policy to deny self signed certs. Arguably a good thing.

EXPECTED RESULT
A way to create exception for the widget instance.

SOFTWARE/OS VERSIONS
Kernel: 6.12.68-2-cachyos-lts (64-bit) 
KDE Plasma Version:  6.5.5
KDE Frameworks Version: 6.22.0
Qt Version: 6.10.2
Wayland

Comment 1 TraceyC 2026-02-06 17:19:41 UTC

Changing this to wishlist, since it's a feature request rather than a bug.

I can reproduce this on Plasma built from git-master, using a homelab site that has a self-signed cert.
In the browser, there are options to allow a site exception, but in the widget there is not
Adding the ability to allow exceptions in the widget seems worth considering.