[Vimeo] A black screen is displayed when opening any type of videos

[Softvision-RemusDranca]

[Affected Versions]:

• Firefox Reality version 12-142041820 (b9666ce).

[Affected Platforms]:

• Oculus Quest - Android 7.1.1
• HTC Vive Focus - Android 7.1.2
• Pico Neo2 - Android 8.1.0

[Prerequisites]:

• The Firefox Reality browser is open.

[Steps to reproduce]:

1. Navigate for example to https://vimeo.com/channels/360vr section.
2. Open a video and observe the behavior.

[Expected results]:

• The video preview is displayed.

[Actual results]:

• A black screen is displayed instead of the video's preview.

[Notes]:

• This issue is reproducible with all type of videos available on the website.
• This issue is also reproducible in the v11 and v10 app versions. Presumably, something changed on their end that is now in conflict with FxR browser.
• After a quit/resume the video already opened can be played but when opening another one the issue is again reproducible.
• This issue is not reproducible with Oculus browser.
• Attached is a screen recording of the issue:
  • Screen Recording: link.

[MortimerGoro]

It seems that the canvas=1 parameter is not supported anymore by vimeo so it doesn't get a valid video from the server.

We'd need to contact Vimeo to find the right way to get a equirect video or find another workaround/hack

Until we have a proper solution I think the best solution is to disable the vimeo extension. Oculus Browser doesn't get equirect videos either.

[bluemarvin]

For reference: #841 (comment)

[bluemarvin]

It seems they support WebVR, maybe we just need to figure out what browser UA they do support and just spoof that in FxR?

[bluemarvin]

Oculus browser doesn't have an immersive mode for vimeo either.

[emstanley]

Find out who on WebCompat has the contact at Vimeo and discuss how we can reenable the canvas parameter value.

[bluemarvin]

The failure to play vimeo videos should have been fixed by #3720 and #3723. However we are no longer able to support immersive video on the Vimeo site. I have created a new issue to track re-enabling immersive mode for Vimeo: #3750

[Softvision-RemusDranca]

I have verified this issue and it's no longer reproducible using the Firefox Reality 12-142161122 (1b09f5a). Now, the videos can be played in normal and full screen mode and the issue with the black screen is no longer encountered on this website.

Tested on Oculus Quest (Android 7.1.1), HTC Vive Focus (Android 7.1.2) and Pico Neo2 - Android 8.1.0.