How to post just a link to YouTube video?

Normal YouTube link always produce the video preview:
Russo-Japanese War (2) Battle of Tsushima 日本海海戦 – 04:56
— genkou asanuma

I tried the share links, but same result:
Russo-Japanese War (2) Battle of Tsushima 日本海海戦 – 04:56
— genkou asanuma

Tried editing them like removing the https … or adding www before the youtu.be in the link, but no result. So, besides using something like tinyurl.com to mask the link... are there any other possibilities that Ijust overlook?

Forcing the link by tangs now come to my mind:
Russo-Japanese War (2) Battle of Tsushima 日本海海戦 – 04:56
— genkou asanuma

…so we see... Okay, this one works! My bad... not thinking about so obvious solution first. But maybe that help someone later down the road to point into so obvious solution that it hurts, when I fail to see it.