1386317 - Tabs are expired with active WebSocket connection

Status: RESOLVED INACTIVE

(Firefox for Android Graveyard :: Web Apps (PWAs), defect)

Description

[juhamatk]

User Agent: Mozilla/5.0 (Windows NT 10.0; rv:54.0) Gecko/20100101 Firefox/54.0
Build ID: 20170628075643

Steps to reproduce:

I opened one tab with active WebSocket connection on TCP and several other tabs.


Actual results:

When I used other tabs and kept the WebSocket connection on the background, it was expired there, i.e. when the WebSocket tab was eventually selected it started from beginning (re-established websocket connection etc, instead of restoring just the view to original connection).

Happens easily on Andoird Firefox, same thing does not happen on Windows Firefox in similar way, at least as easily.


Expected results:

In case of active websocket connection, the tab should not expire. This would be similar to a case where an audio file is played on the tab: these tabs do not expire.

Comment 1

[Kartikaya Gupta (email:[e-mail])]

We'd want to add some state in the tab object to track if there are any websocket connections open, and then update the check at [1] to also skip zombification if websockets are open.

[1] http://searchfox.org/mozilla-central/rev/bbc1c59e460a27b20929b56489e2e55438de81fa/mobile/android/chrome/content/browser.js#7007

Comment 2

[Jan Henning [:JanH]]

And here as well: https://dxr.mozilla.org/mozilla-central/rev/36f95aeb4c77f7cf3b3366583008cd6e4b6b1dba/mobile/android/chrome/content/MemoryObserver.js#27

Comment 3

[juhamatk]

Hi! Any chance ti getbthis fixed soon? Anything I can help with?

Comment 4

[juhamatk]

I tested this on Firefox 55.0.3 for Windows and happens there too, but not as aggressively. A fix would be nice. Workaround is to loop a silent audio file constantly. It will be seen on Firefox for Android as a separate streaming icon in the headbar so workaround is not transparent really.

Workaround in detail:
//global scope
myAudio = new Audio('silence.ogg');
myAudio.loop = true;
myAudio.play();

Comment 5

[Firefox Bug Husbandry Bot]

Closing per https://bugzilla.mozilla.org/show_bug.cgi?id=1473195

Contact :susheel if you think this bug should be re-opened