Play Video Full Screen fails - regression?

[VeederLicht]

Steps to reproduce

1. Use v21
2. Play a video
3. Use the players 'full screen' icon to maximize to full screen

Expected behaviour

Play the video, resized to full screen

Actual behaviour

When enlarging a video during playback using the double arrows in the player, the browser display does maximize to full screen, but the video itself keeps playing in its smaller resolution. I happen to have 2 nextcloud instances running. One on version 20 and one on version 21. The older version does not have this behaviour! Regression?

See attached images:

Server configuration

Operating system:
Arch

Web server:
NGINX

Database:
MariaDB
PHP version:

Nextcloud version: (see Nextcloud admin page)
21.0.0
(correct working version 20.0.4)

Updated from an older Nextcloud/ownCloud or fresh install:
No, fresh install

Where did you install Nextcloud from:
Pacman, arch repo

My own analysis

The difference between the two versions using the browser developertools show that in the correctly working version javascript dynamically updates the style of:
#viewer > div.modal-wrapper.modal-wrapper--large.modal-wrapper--spread-navigation > div > div > div.viewer__file.viewer__file--active

in the newer, faulty version, the javascript instead updates the style of the video element under:
#viewer > div.modal-wrapper.modal-wrapper--large.modal-wrapper--spread-navigation > div > div > div.viewer__file.viewer__file--active > div > div.plyr__video-wrapper

In both cases the height and width of the specified elements are set. If you remove these tags using the developertools, the video behaves as expected and will play fullscreen.

[BZUITS]

Just wanted to share this probem too, so it gets more attention.

I want to point out that this bug also occurs on videos which are on external storages.

Server configuration

Operating system:
Ubuntu Server 20.04 LTS

Web server:
Apache2.4

Database:
MYSQL

PHP version:
7.4

Nextcloud version: (see Nextcloud admin page)
21.0.0

Updated from an older Nextcloud/ownCloud or fresh install:
No, fresh install

Where did you install Nextcloud from:
Ubuntu repo

[BZUITS]

On a freshly installed NC 21.0.1 the fullscreen is working correctly.
But after the NC 21.0.1 Update from 21.0.0 the fullscreen on videos is still not scaling correctly.

Is there something else we have to specifically update?

Thanks in advance

[skjnldsv]

1. clear your browser's cache
2. run an occ maintenance:repair on your server

Thanks 😉

[britzke]

thank you for this advice but the two steps above seem not to help on my installation I updated from 19.0.x to 21.0.1 with the stable release cycle. Is there anything I can check for?

I have tested on a firefox 88 on Ubuntu 21.04, and Safari OS X Big Sur