1210843 - Inert messaging area in release browser when messaging during FxA contact call

Status: RESOLVED WONTFIX

(Hello (Loop) :: Client, defect)

Description

[Richard Pappalardo [:rpapa][:rpappalardo]]

STR - SCENARIO #1

[1]. Open 2 browsers with clean profiles (1 Nightly, 1 General Release)
[2]. Login both browsers to separate firefox accounts
[3]. Add the Firefox account contact of one of the users to the other browser
[4]. Initiate a call to the other firefox account contact
[5]. Send a message from Nightly to General Release
[6]. Observe that message area posts correctly on Nightly, but message area on General Release browser is inert (unable to post messages) and obscured by black background (though it does resize with new messages)

https://www.dropbox.com/s/oavjv3taali9v7t/Screenshot%202015-10-02%2008.40.07.png?dl=0

STR - SCENARIO #2

[1]. Open 2 browsers with clean profiles (Both General Release)
[2]. Login both browsers to firefox accounts
[3]. Add the Firefox account contact of one of the users to the other browser
[4]. Initiate a call to the other firefox account contact
[5]. Observe that message area on both browsers is inert (unable to post messages) and obscured by black background

https://www.dropbox.com/s/shk45nf013egbom/obscured.png?dl=0

Comment 1

[Mark Banner (:standard8)]

I managed to figure this out:

- Firefox 41 supports text chat for rooms (aka conversations). It doesn't support text chat for direct calls.
- 42 and later added support for text chat.
- We detect text chat based on if we're able to set up data channels.
- Due to the support 41 has for rooms, the code that's shared between rooms & direct calls automatically sets up the data channels.
- Hence, 42 detects this and enables text chat
- 41 doesn't know about text chat in direct calls, and so doesn't provide a text box.

Hence the broke state.

Given 41 is in release and would be where the fix is needed, this is unfortunately a wontfix for 41 (and not chemspill worthy). In 42 it'll resolve itself.

Note this only affects users using 42 or later to talk to 41 via direct calls.