Video setup silent failure mode

[EskelCz]

Type of issue

error handling

Description

When setting up video format to hook up into a player, I have found a failure mode which isn't treated as a failure mode but I think it should be. When the mediaTypes.video.divId doesn't match the video player div id, the video ad is not shown, without any error or warning.

Steps to reproduce

Change divId in adUnit configuration to some non-existent value

Test page

https://stackblitz.com/edit/prebid-video?file=index.html%3AL43

Expected results

Ideally a warning that the player was not found

Actual results

The setup acts as if the ad wasn't supposed to be played at all

Platform details

Prebid 8.17 with a renderAd fix from this PR #10567

Other information

Moved to the separate issue from here: #10505

[EskelCz]

Additionally, when the divId is wrong in video.providers object, the player breaks completely, also without any error or explanation.
Demo: https://stackblitz.com/edit/prebid-video-2?file=index.html%3AL65-L65

[dgirardi]

For the OP: #10664

For the second issue: in theory you should get a videoSetupFailed event, but from what I can tell there's no way to access it - event listeners can be attached only after init, but the init itself will fire the error event at a time when there cannot be any listeners. @karimMourra could you help? I'm not sure if I'm missing something.

[karimMourra]

@EskelCz thanks for reporting and including the demo pages! Those are very helpful!
@dgirardi thanks for the fix on #10664 - The other issue appears to be a race condition where the setupFailure is triggered before the event listeners are attached. I'll try to propose a fix next week.