YouTube URIs fail to render thumbnails when oneboxed

Fout
, ,
1

I’ve confirmed that:

  1. https://youtube.com/shorts/Cs3sTnLO6EE

  2. https://www.youtube.com/watch?v=Cs3sTnLO6EE&lc=Ugyi1VtrCVd2POTc82N4AaABAg#:~:text=A%20Screencast%20Of%20LinkedIn%20Persona%20Verification%20Failure

…become a transparent box:

Shorts Non-Shorts
1407×847 51.4 KB
[1]
1407×847 59.4 KB
[1:1]

The DOM shows:

<img src="" width="480" height="360" title=" - YouTube" style="aspect-ratio: 480 / 360;">

However, they render when posted:

  1. bugs.kde.org/show_bug.cgi?id=511477#c1 ↩︎ ↩︎

1 like
2

Confirmed, nice catch, going to put a pr-welcome on this for now and leave a note for the team to triage.

1 like
4

This is an interesting one, I can reproduce the issues with the links in the OP here on Meta, but locally and on our internal Discourse site they are fetched and rendered fine:

image
image860×942 87.4 KB

@rokejulianlockhart are these links not rendering properly on your own site, or just not here on Meta?

1 like
5

@martin, some others, too:

Non-Shorts

With https://www.youtube.com/watch?v=Cs3sTnLO6EE&lc=Ugyi1VtrCVd2POTc82N4AaABAg#:~:text=A%20Screencast%20Of%20LinkedIn%20Persona%20Verification%20Failure, this reproduces at:

  1. discuss.kde.org/new-topic

1407×847 56.1 KB
[1]

  1. forum.fairphone.com/new-topic

1407×817 61 KB
[1:1]

However, at discussion.fedoraproject.org, it renders:

@{'Date'='20251106T154007+0000'; 'Type'='Photo'; 'Origin'='Fedora Discussion - Fedora Linux and Fedora Project community conversation. — Mozilla Firefox'}#
@{'Date'='20251106T154007+0000'; 'Type'='Photo'; 'Origin'='Fedora Discussion - Fedora Linux and Fedora Project community conversation. — Mozilla Firefox'}#1407×847 119 KB
[1:2]

Shorts

With https://youtube.com/shorts/Cs3sTnLO6EE, the undermentioned is reproduced:

…at:

  1. discuss.kde.org/new-topic

1407×847 51.7 KB
[1:3]

  1. forum.fairphone.com/new-topic

1407×817 56.6 KB
[1:4]

However, as before, at discussion.fedoraproject.org, it renders:

@{'Date'='20251106T154119+0000'; 'Type'='Photo'; 'Origin'='Fedora Discussion - Fedora Linux and Fedora Project community conversation. — Mozilla Firefox'}#
@{'Date'='20251106T154119+0000'; 'Type'='Photo'; 'Origin'='Fedora Discussion - Fedora Linux and Fedora Project community conversation. — Mozilla Firefox'}#1407×847 122 KB
[1:5]

What are Fedora doing so correctly?

  1. bugs.kde.org/show_bug.cgi?id=511477#c1 ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎

1 like
6

Is this issue solved, I opened a topic for issue similar currently going in my Board

7

@hameedacpa, this is completely irrelevant to that, because this is about the previewer. Additionally, you can confirm that it’s not been remediated by merely utilising the previewer. I suggest that you install a translator.

1 like
8

I found this topic including partial issue that I’m facing too

image
image2722×418 37.7 KB

Actually all Youtube videos not working like before and my forums is not having a customization as it is based on the original board

9

@hameedacpa, thanks. That is similar, although I doubt equivalent. The presence of an invalid thumbnail icon appears to demonstrate that, alongside the different aspect ratio of the <img. If you put those details in 387672/1, they’ll be of use there. If they’re merely browser-caused differences, it’ll be triaged as a partial duplicate of this.

On that note, include your browser version, Discourse version, and the actual markup of the rendered content in that cited thread. Currently, it’s devoid of much except a screenshot, and spread over immediately consecutive posts; you need to put the effort in to make it presentable, to receive unpaid assistance.