[Webkit-unassigned] [Bug 133605] New: [GTK] 8tracks.com triggers annoying pop-up window/installation of "About protocol source plugin" (GStreamer?)

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=133605

           Summary: [GTK] 8tracks.com triggers annoying pop-up
                    window/installation of "About protocol source plugin"
                    (GStreamer?)
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
               URL: http://8tracks.com
        OS/Version: Linux
            Status: NEW
          Severity: Normal
          Priority: P3
         Component: WebKit Gtk
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: janousek.jiri at gmail.com


Hi,

a few users of my WebKitGtk-based application (Nuvola Player) reported that an annoying pop-up window at 8tracks.com is shown when a new song is played from the playlist. The text varies:

"Required plugin not found - Nuvola Player requires to install plugins to support the following multimedia feature: ABOUT protocol source."

"gnome-packagekit-session requires an additional plugin for this operation. The following plugin is required: ABOUT protocol source. Do you want to search for this now?"

"Invalid commandline. The parameters passed to the application had an invalid format. Please file a bug! The parameters were: gstreamer|1.0|nuvolaplayer|ABOUT protocol source|urisource-about"

The issue affects both WebKitGtk and WebKit2Gtk, for example using WebKit2Gtk 2.4.2 MiniBrowser on Debian Jessie:

- Run /usr/lib/x86_64-linux-gnu/webkit2gtk-3.0/libexec/MiniBrowser --enable-plugins=false http://8tracks.com/ellejolene/if-your-life-were-a-pixar-film
- Click Play button
- Click Skip to next song button
- A popup window is shown

I suspect 8tracks.com does some kind of check for HTML5 audio support and it triggers installation of missing GStreamer plugin. Is it possible to get rid of that pop-up window? 8tracks.com works great with WebKitGtk + GStreamer otherwise, but user experience suffers. Thank you.

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