Scroll continuation not working for video recommendations (watch next feed)

[zerodytrash]

What happened?

It worked a few days ago via the /next endpoint with an appropriate continuation token. Now YT queries the endpoint https://www.youtube.com/related_ajax?ctoken=.... which seems to no longer exist (404) and it gets stuck at the loading indicator.

Platform

Userscript

Version

2.5.4

What browser are you on?

Chrome

Browser version

108.0.5359.125

Link to the video

https://www.youtube.com/watch?v=dqRZDebPIGs

Screenshots or Videos

Scroll to the end of the video suggestions and check if more of them are loaded.

About you

• I am a developer and/or have knowledge in programming

[drunkwinter]

Production server gives a different response than what's expected.

// production
contents.twoColumnWatchNextResults.secondaryResults.secondaryResults.continuations

// local
contents.twoColumnWatchNextResults.secondaryResults.secondaryResults.results[lastIndex].continuationItemRenderer

I think it's location based? There is no way for me to really test this...

[drunkwinter]

We could definitely reconstruct the response format, but don't know if that's a good idea or if it even will work to begin with.

[drunkwinter]

I'm getting this with every video now, even with the script disabled.