1348909 - Focusing the Web Skype tab while being called does not output the call audio

Status: RESOLVED DUPLICATE of bug 1347758

(Core :: Audio/Video: Playback, defect)

Description

[Emil Ghitta, QA [:emilghitta]]

[Affected versions]:
Firefox 54.0a2 (Build Id:20170319004022)
Firefox 55.0a1 (Build Id:20170319030211)

[Affected platforms]:
Windows 10 64bit
Windows 7 64bit
MacOs 10.12 

[Steps to reproduce]:
1. Launch Firefox.
2. Open the https://web.skype.com/ in a new tab (while being logged in).
3. Wait for a call.
4. While receiving a call, switch to the opened skype tab.
5. Observe that the call audio is not being outputted and the Play icon tab remains displayed.

[Expected result]:
After switching to the opened video tab, the audio is properly played back.

[Actual result]:
The call audio is not being played back after switching to the opened skype tab (while receiving a call).

[Regression range]:
This seems to be a regression:

Pushlog:
https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?startdate=2017-03-03&enddate=2017-03-05

Comment 1

[Alastor Wu [:alwu]]

Bug 1347758 can also fix that.

Comment 2

[Emil Ghitta, QA [:emilghitta]]

We have retested this issue using latest Firefox Nightly and I can confirm that this works as expected.

Comment 3

[Blake Wu [:bwu][:blakewu]]

Emil,
Can you also help verify it on Firefox 54 to see if it is fixed?
Thanks.

Comment 4

[Alastor Wu [:alwu]]

See comment2, it has been verified.

Comment 5

[Blake Wu [:bwu][:blakewu]]

With bug 1352014, block-autoplay is not enabled on 54, set 54 unaffected.

Comment 6

[Liz Henry (:lizzard) (privacy/fingerprinting team)]

Marking fixed for 55 based on bug 1347758.