Comment 2 for bug 1603729

I confirm this issue with my "uFip" webapp.
Also I confirm this is a regression from the OTA 12 development cycle: I flashed back my Nexus 4 to OTA 11 and it started working again.

Here are some logs that may be interesting:

[DD 2016-07-18 21:37:17.822452] [player_stub.cpp:189@operator()] PlaybackStatusChanged signal arrived via the bus (status: PlaybackStatus::stopped)
[TT 2016-07-18 21:37:18.270156] [service.cpp:29@instance]
[DD 2016-07-18 21:37:18.741299] [player_stub.cpp:189@operator()] PlaybackStatusChanged signal arrived via the bus (status: PlaybackStatus::ready)
long long unsigned int mediahub_get_duration(MediaHubClientHandle) org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
void mediahub_play(MediaHubClientHandle) Problem starting playback on remote object
[DD 2016-07-18 21:37:20.538491] [player_stub.cpp:207@operator()] BufferingChanged signal arrived via the bus (percent: 1
[DD 2016-07-18 21:37:20.538705] [player_stub.cpp:207@operator()] BufferingChanged signal arrived via the bus (percent: 2
[DD 2016-07-18 21:37:20.538918] [player_stub.cpp:207@operator()] BufferingChanged signal arrived via the bus (percent: 3
[DD 2016-07-18 21:37:20.539101] [player_stub.cpp:207@operator()] BufferingChanged signal arrived via the bus (percent: 4
[DD 2016-07-18 21:37:20.539315] [player_stub.cpp:207@operator()] BufferingChanged signal arrived via the bus (percent: 5
[DD 2016-07-18 21:37:20.539529] [player_stub.cpp:207@operator()] BufferingChanged signal arrived via the bus (percent: 6
[DD 2016-07-18 21:37:20.539712] [player_stub.cpp:207@operator()] BufferingChanged signal arrived via the bus (percent: 12
[DD 2016-07-18 21:37:20.539925] [player_stub.cpp:207@operator()] BufferingChanged signal arrived via the bus (percent: 100
long long unsigned int mediahub_get_duration(MediaHubClientHandle) org.freedesktop.DBus.Error.ServiceUnknown: The name core.ubuntu.media.Service was not provided by any .service files
long long unsigned int mediahub_get_position(MediaHubClientHandle) org.freedesktop.DBus.Error.ServiceUnknown: The name core.ubuntu.media.Service was not provided by any .service files
qml: [JS] (http://www.fipradio.fr/sites/all/modules/custom/rf_lecteur_commun/js/player.js:842) nextRefresh 7: 7000
qml: [JS] (http://www.fipradio.fr/sites/all/modules/custom/rf_lecteur_commun/js/player.js:848) [object Object]
long long unsigned int mediahub_get_duration(MediaHubClientHandle) org.freedesktop.DBus.Error.UnknownMethod: Method "Get" with signature "ss" on interface "org.freedesktop.DBus.Properties" doesn't exist

The last line is then repeated endlessly.