[derekzhouzhen]

I understand; I was thinking from your angle. Rendering and hosting images is a big effort, what if someone change the query string slightly and you would lose the caching opportunity?

With a static site generator I can make the og:image generation part of the build process and host the result myself. Less burden for you, more security for me.

[lot3oo]

Ah I see what you mean. This would be an easily supported use case actually (you can already do it by using the same URL and downloading the picture, but it's not documented). I need to add more documentation regarding this!

Thanks for sharing!