[Falkon] [Bug 509274] New: Live audio stream not automatically played on certain web site when play button is clicked once

[Jens]

https://bugs.kde.org/show_bug.cgi?id=509274

            Bug ID: 509274
           Summary: Live audio stream not automatically played on certain
                    web site when play button is clicked once
    Classification: Applications
           Product: Falkon
      Version First 25.08.0
       Reported In:
          Platform: EndeavourOS
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: senf at mailbox.org
  Target Milestone: ---

Steps to reproduce the behavior (at least on my machine):

1. Open https://www.deutschlandfunk.de/, the web site of "Deutschlandfunk", a
nationwide transmitting public radio station in Germany.

2. Click the "Live" button once in the upper right corner on deutschlandfunk.de

At the bottom of deutschlandfunk.de an additional, horizontally positioned
element gets displayed. With this element you among other things can stop and
re-start the current live stream on deutschlandfunk.de.

By the way, at the right end of this horizontal element you will see the
"Schließen" button, with that button you can close the additional, horizontally
positioned element at the bottom of deutschlandfunk.de.

Expected behavior:

Normally, after only one click on the "Live" button on deutschlandfunk.de the
live audio stream of "Deutschlandfunk" immediately is played, that is at least
the case in Firefox 142.0.1. and in Konqueror 25.08.0 on my machine,

But Falkon does not play this audio stream.

Workaround to be able to listen to the live audio stream of "Deutschlandfunk"
in Falkon:

3. With each a break of appr. 1 second click 3 times on the blue Stop/Play
button in the the additional, horizontally positioned element at the bottom of
deutschlandfunk.de. The blue Stop/Play button is shown close to the left edge
of the additional, horizontally positioned element at the bottom of
deutschlandfunk.de.

You can now listen to the live stream of "Deutschlandfunk" if this audio stream
is not blocked for your location due to geoblocking.

The command "sudo journalctl -f" created the following three lines while I
clicked 3 times on the blue Stop/Play button in Falkon:

Sep 08 13:16:25 <Host name> wireplumber[1237]: wp-event-dispatcher:
<WpAsyncEventHook:0x55f73a50b8d0> failed: failed to activate item: Object
activation aborted: proxy destroyed
Sep 08 13:16:55 <Host name> wireplumber[1237]: wp-event-dispatcher:
<WpAsyncEventHook:0x55f73a50b8d0> failed: failed to activate item: Object
activation aborted: proxy destroyed
Sep 08 13:16:59 <Host name> wireplumber[1237]: wp-event-dispatcher:
<WpAsyncEventHook:0x55f73a4f35d0> failed: <WpSiStandardLink:0x55f73a63a760>
link failed: some node was destroyed before the link was created

During another, former Falkon session I noticed the following output by
journalctl while I clicked 3 times on the blue Stop/Play button:

Sep 08 07:55:53 <Host name> wireplumber[1235]: wp-event-dispatcher:
<WpAsyncEventHook:0x5654fa6ecb60> failed: <WpSiStandardLink:0x5654fa8e61a0>
link failed: 1 of 1 PipeWire links failed to activate
Sep 08 07:56:25 <Host name> wireplumber[1235]: wp-event-dispatcher:
<WpAsyncEventHook:0x5654fa704bc0> failed: failed to activate item: Object
activation aborted: proxy destroyed

Please note that wireplumber and PipeWire are mentioned in these log output
lines.

I am not sure if this is a wireplumber/PipeWire or a Falkon issue, but because
this behavior does not occur in Firefox 142.0.1. and in Konqueror 25.08.0 on my
machine I guess that the issue which I have reported here is a Falkon issue.

Some information about my system:

Operating System: EndeavourOS
KDE Plasma Version: 6.4.4
KDE Frameworks Version: 6.17.0
Qt Version: 6.9.2
Kernel Version: 6.16.5-arch1-1 (64-bit)
Graphics Platform: Wayland

Information about Falkon on my system:

Application version 25.08.0
Qt version 6.9.2
QtWebEngine version 6.9.1
Platform Linux x86_64
Browser Identification
Mozilla/5.0 (Wayland; Linux x86_64; rv:102.0) Gecko/20100101 Firefox/142.0.1

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