Facebook Preview Won't Update

[System0]

I've updated the logo at /forums/styles/default/xenforo/logo.og.png

Unfortunately, Facebook still shows the xenforo logo when someone links to my forums. It appears it's stored in cache e.g. http://external.ak.fbcdn.net/safe_image.php?d=AQDOar8YdsVgxuff&url=http://......

Any idea how to clear the cache Facebook is using so it shows the new logo

Kevin

 

[Paul B]

Facebook control the cache on their servers.

It can take several weeks to update.

 

[System0]

Ahhh. That's a pain.
OK, thanks for letting me know