falkon failed to load some pages

[Hans P. Möller]

Some pages failed to load in falkon, like duckduckgo.com. But others load fine like google.com
Some also crash after ended rendering them, like spiegel.de

The message I get is:

Failed loading page
Something went wrong while loading this page.
Try reloading the page or closing some tabs to make more memory available.

But reloading only makes the situation to repeat and I have pl3nty of memory.

The only messagese I get when laucnhing via terminal are:

$ falkon
Attribute Qt::AA_ShareOpenGLContexts must be set before QCoreApplication is created.
QWebEngineUrlScheme::registerScheme: Too late to register scheme "falkon"
QWebEngineUrlScheme::registerScheme: Too late to register scheme "extension"
Please register the custom scheme 'falkon' via QWebEngineUrlScheme::registerScheme() before installing the custom scheme handler.
Please register the custom scheme 'extension' via QWebEngineUrlScheme::registerScheme() before installing the custom scheme handler.
Falkon: 1 extensions loaded
Icon theme "elementary" not found.
libpng warning: iCCP: known incorrect sRGB profile
Xlib: sequence lost (0x12c15 > 0x2c17) in reply type 0x0!
libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: known incorrect sRGB profile

ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: falkon 3.1.0-0ubuntu1
ProcVersionSignature: Ubuntu 5.2.0-8.9-generic 5.2.0
Uname: Linux 5.2.0-8-generic x86_64
ApportVersion: 2.20.11-0ubuntu5
Architecture: amd64
CurrentDesktop: LXQt
Date: Wed Jul 17 12:53:35 2019
InstallationDate: Installed on 2019-03-22 (117 days ago)
InstallationMedia: Lubuntu 19.04 "Disco Dingo" - Alpha amd64 (20190321)
SourcePackage: falkon
UpgradeStatus: No upgrade log present (probably fresh install)

[Hans P. Möller (hmollercl)]

If I create a new profile and open falkon with it, the problem with this profile doesn't happen. But then if I use tho older profile, it happens again.

[Chris Guiver (guiverc)]

I've been using falkon for launchpad quite a lot recently, so opened term &

guiverc@d960-ubu2:~$ falkon duckduckgo.com
Attribute Qt::AA_ShareOpenGLContexts must be set before QCoreApplication is created.
guiverc@d960-ubu2:~$

From duckduckgo I searched & went to spigel.de & looked at some photos without issue.
Currently I'm still running older 5.0.0-20 kernel (haven't rebooted yet) but identical falkon package

[ԜаӀtеr Ⅼарсһуnѕkі (wxl)]

Just to go on record, I did have this experience the other day, but have not been able to reproduce.

[Philippe Cloutier (chealer-gmail)]

Which version of Qt WebEngine do you use? A similar issue was blamed on it: https://bugs.kde.org/show_bug.cgi?id=405852

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Chris Guiver (guiverc)]

 Thank you for reporting this bug to Ubuntu.

Ubuntu 19.10 (eoan) reached end-of-life on July 17, 2020.

See this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test. If you then find the bug is still present in the newer Ubuntu version, please add a comment here telling us which new version it is in.