1441479 - Call gets frozen if closing the Firefox tab during a web.ciscospark call

Status: NEW

(Core :: WebRTC: Audio/Video, defect, P2)

Description

[Emil Ghitta, QA [:emilghitta]]

[Affected versions]:
Firefox 59b12 (BuildId:20180222170353)
Firefox 60.0a1 (BuildId:20180226230123)

[Affected platforms]:

Call between macOS 10.12 (Caller - Firefox Release) and Ubuntu 16.04 (Callee - Firefox Beta) via https://web.ciscospark.com/

[Steps to reproduce]:

1. The caller (A) performs a call to callee (B).
2. (B) answers the call.
3. (A) closes the Firefox call tab. 

[Expected result]:

The call is successfully ended.

[Actual result]:

(A)'s webcam is displayed as frozen to (B).


[Regression range]:
We will get back with a regression range asap.


NOTE: 
This issue was reproduced during a Nightly to Nightly call also.

This issue is also reproducible if (B) is performing step 3.

This is not reproducible with Google Chrome.

Comment 1

[Nils Ohlmeier [:drno]]

Can you please check if 58 is affected by this issue?

I'm asking because this might be caused by Cisco Spark not handling the changes implemented for the Transceiver work in Fx 59 properly.

Comment 2

[Emil Ghitta, QA [:emilghitta]]

Hi Nils,

We retested this scenario by performing a call between Ubuntu 16.04 (Fx 58.0.2) and Windows 10 (Fx 58.0.2). It seems that this issue reproducible with 58 as well.

Comment 3

[Nils Ohlmeier [:drno]]

With it not being a recent regression I'm not sure how hard it will be to find a regression window.

The other question is if this is actually a bug in Firefox, or more a Cisco Spark issue in the sense that Spark appears to fail to recognize that one side of call just disapeared/crashed/... And it might be a problem which always existed with Cisco Spark.