Re-writing this topic since the issue is worse than I believe first. Oneboxing doesn’t work anymore on my forum unicyclist.com and I don’t know why. See: https://unicyclist.com/t/oneboxes-not-working-anymore/272954/5?u=canapin I got 404 errors like GET https://unicyclist.com/onebox?url=https%3A%2…

Oneboxes לא עובדות יותר

Canapin (Coin-coin le Canapin) 13 בפברואר,‏ 2022,‏ 11:38am 4

It’s working again. I have no clue why.

"Onebox Assistant", crawl for those previews reliably!

נושא		תגובות	צפיות
Onebox no longer works for my wordpress site Support	12	1690	12 ביוני,‏ 2017
Rich onebox stopped working Support onebox	7	1131	12 בפברואר,‏ 2018
Trouble oneboxing - 429 error Bug	4	591	28 באפריל,‏ 2023
Internal URL no longer oneboxing Support	27	2787	12 ביוני,‏ 2017
Onebox not working after Discourse upgrade Bug	17	2931	1 בנובמבר,‏ 2017