I updated my site today (from_version: c6782e8434f404f30de8cba054dfeac004663981), and since then have been having issues with youtube embedding. The first issue I noticed is that youtu.be links weren’t generating a onebox, while youtube.com links still worked. After playing around for a bit, I disabled the “Block onebox on redirect” setting, which fixed the issue for youtu.be links, although I need to rebuilt HTML on old posts. And /shorts/ links still aren’t working, even if I rebuild the HTML. No errors in logs, nothing else I’ve noticed broken. Not sure if it’s related, but in trying to troubleshoot I also noticed that trying to disable the ‘Lazy videos’ plugin gives an error: “An error occurred: You are not allowed to change hidden settings: lazy_videos_enabled” Any ideas?

Thank you so much ! Your solution worked ! (appart for shorts…)

Thanks for the report — we’ll have a look.

I don’t think there’s anything to do here on our end. All sites have SiteSetting.block_onebox_on_redirect false by default. Meta does so too, so most sites that don’t touch this setting would have youtu.be and /shorts resolving as per normal. I was concerned that either of these changes FIX: Add ld+json VideoObject to each lazy video (#34678) · discourse/discourse@a9b1fb9 · GitHub or FIX: update final destination to use more recent user agent (#34207) · discourse/discourse@4a17a31 · GitHub caused the issue, but I can confirm it did not. I did see this blog post which seems to be very timely - Google URL Shortener links will no longer be available [updated] - Google Developers Blog Any developers using links built with the Google URL Shortener in the form https://goo.gl/* will be impacted, and these URLs will no longer return a response after August 25th, 2025. We recommend transitioning these links to another URL shortener provider. While it mentions only goo.gl, I am not surprised if under the hood youtube links have also been made to undergo some sort of redirection moving forwards. For posterity, here is a youtu.be and a /shorts link rendering fine [Singapore GP 2025 | Highlights | Comedy on F1 racing] [The Twins]

YouTube Shorts don’t embed on our site either, is there a setting I need to adjust to make it work?

Do you have an example SFW short you can paste here? If private, feel free to PM me.

Here’s one for example [This may be controversial… #sims4]

Ah it works here. Doesn’t work on my site https://forum.tardis.guide Link where someone posted it but it didn’t work: [image] What Are You Currently Playing? General / off topic video-games your-current-project I know nothing about inzoi but I hate Sims 4 fans because of this kind of behaviour 😭 “Sims has lore , Inzoi has none” I don’t think it’s a fair comparison because the Sims has been around for years when Inzoi is very recent , why would anyone... (I’ve also tried posting it myself)

Do you have non-default values onebox settings? e.g. on /admin/site_settings/category/all_results?filter=onebox

I don’t have any non-default onebox settings: [Screenshot from 2025-10-14 10-38-52] It looks like some shorts work on my site, but not all. For example, @nat’s ‘The Twins’ short gets embedded properly, but @Shauny’s does not. And, not sure if this is relevant, but another difference I noticed between them is that Natalie’s shows a picture in the WYSIWYG preview and Shaun’s does not: [image] That seems to be consistent for other shorts that do and don’t embed properly on my site. Shaun, can you replicate?

Youtube issues after update

Product Support

NateDhaliwal (Nate Dhaliwal) October 14, 2025, 11:31pm 14

More accurately, that’s actually the composer preview (you’re in Markdown mode, not WYSIWYG).

Topic		Replies	Views
Youtube "short" videos type embedding/oneboxing not working Feature completed	21	4071	December 6, 2022
Lazy video Onebox not loaded correctly for some YouTube videos Bug	13	526	January 29, 2025
Youtube Embed Not Working Properly Product Support	9	718	November 16, 2024
Lazy videos does not work with youtu.be Product Support	3	231	December 1, 2025
Youtube embeddings have stopped working for servers in Europe Bug	37	5385	April 9, 2021

Youtube issues after update

Related topics