Czołem!

I have guide how to disable cookies in QWebEngineView:

<https://stackoverflow.com/questions/68424280/how-to-disable-cookies-using-qtwebengine>

But I have compilation problem:

fatal error: FilterRequest: Nie ma takiego pliku ani katalogu
6 | #include <FilterRequest>
| ^~~~~~~~~~~~~~~
compilation terminated.

I check if FilterRequest exists in the /usr/* dir:

find /usr -iname '*FilterRequest*'

But it found only files related to LO in two dirs:
/usr/share/idl/libreoffice , and /usr/share/doc/libreoffice .

Even more strange is fact that the same result gives me:

apt-file find FilterRequest

But in Assistant (Qt lib doc.) is clearly writen:

Header: #include <FilterRequest>
Since: Qt 5.11

I check that in my os, with command:

apt list | grep libqt5

and it seems that I have Qt v5.12.8.

So why on my Kubuntu 20.04 I can't found the FilterRequest include file?!?
It is expected? Or my os is broken? Or even worst maybe it is hacked?!?

--
Miłego dnia!
Jacek Marcin Jaworski: <jaworski1978@adres.pl>;
S. domowa: <https://energokod.pl>;
Mini Netykieta: <https://energokod.pl/MiniNetykieta.html>.

--- MBSE BBS v1.1.1 (Linux-x86_64)
* Origin: Energo Kod (3:633/280.2@fidonet)

Subject: Re: Atempt disable cookies in QWebEngineView failed for strange
reason

W dniu 13.07.2025 o�20:08, Scott Lurndal pisze:

=?UTF-8?B?8J+HtfCfh7FKYWNlayBNYXJjaW4gSmF3b3Jza2nwn4e18J+HsQ==?= <jaworski1978@adres.pl> writes:

Czołem!

I check that in my os, with command:

apt list | grep libqt5

and it seems that I have Qt v5.12.8.

You likely need to load libqt5-dev to get the compile time header files.

It is a joke? There is no such package!

$ apt list | grep libqt5.*-dev

WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

libqt5-ukui-style-dev/focal 1.0.3-0ubuntu2 amd64
libqt5charts5-dev/focal 5.12.8-0ubuntu1 amd64 libqt5datavisualization5-dev/focal 5.12.8-0ubuntu1 amd64 libqt5gamepad5-dev/focal 5.12.8-0ubuntu1 amd64 libqt5gstreamer-dev/focal-updates 1.2.0-5ubuntu0.1 amd64 libqt5networkauth5-dev/focal 5.12.8-0ubuntu1 amd64 libqt5opengl5-dev/focal-updates,focal-security,now
5.12.8+dfsg-0ubuntu2.1 amd64 [zainstalowany,automatycznie] libqt5opengl5-dev/focal-updates,focal-security 5.12.8+dfsg-0ubuntu2.1 i386 libqt5pas-dev/focal 2.6~beta-6build1 amd64
libqt5remoteobjects5-dev/focal 5.12.8-0ubuntu1 amd64
libqt5scxml5-dev/focal 5.12.8-0ubuntu1 amd64
libqt5sensors5-dev/focal 5.12.8-0ubuntu1 amd64
libqt5sensors5-dev/focal 5.12.8-0ubuntu1 i386
libqt5serialbus5-dev/focal 5.12.8-0ubuntu1 amd64
libqt5serialport5-dev/focal 5.12.8-0ubuntu1 amd64
libqt5serialport5-dev/focal 5.12.8-0ubuntu1 i386
libqt5svg5-dev/focal,now 5.12.8-0ubuntu1 amd64 [zainstalowany,automatycznie] libqt5svg5-dev/focal 5.12.8-0ubuntu1 i386
libqt5texttospeech5-dev/focal 5.12.8-0ubuntu1 amd64 libqt5virtualkeyboard5-dev/focal 5.12.8+dfsg-0ubuntu1 amd64 libqt5waylandclient5-dev/focal 5.12.8-0ubuntu1 amd64 libqt5waylandcompositor5-dev/focal 5.12.8-0ubuntu1 amd64 libqt5webchannel5-dev/focal,now 5.12.8-0ubuntu1 amd64 [zainstalowany,automatycznie]
libqt5webchannel5-dev/focal 5.12.8-0ubuntu1 i386 libqt5webkit5-dev/focal-updates,now 5.212.0~alpha4-1ubuntu2.1 amd64 [zainstalowany]
libqt5webkit5-dev/focal-updates 5.212.0~alpha4-1ubuntu2.1 i386 libqt5websockets5-dev/focal 5.12.8-0ubuntu1 amd64
libqt5websockets5-dev/focal 5.12.8-0ubuntu1 i386
libqt5webview5-dev/focal 5.12.8-0ubuntu1 amd64
libqt5x11extras5-dev/focal 5.12.8-0ubuntu1 amd64
libqt5x11extras5-dev/focal 5.12.8-0ubuntu1 i386
libqt5xdg-dev/focal 3.4.0-1build2 amd64
libqt5xdgiconloader-dev/focal 3.4.0-1build2 amd64 libqt5xmlpatterns5-dev/focal,now 5.12.8-0ubuntu1 amd64 [zainstalowany,automatycznie]
libqt5xmlpatterns5-dev/focal 5.12.8-0ubuntu1 i386

BTW I mention search in all Ubutnu packages, quote:

"Even more strange is fact that the same result gives me:

apt-file find FilterRequest"

--- MBSE BBS v1.1.1 (Linux-x86_64)
* Origin: Energo Kod (3:633/280.2@fidonet)