How to clear Facebook Sharer cache?

Question

We used the link:

http://www.facebook.com/sharer.php?u=[shared URL]

...to share a particular page. However, Facebook Sharer uses the cache

Answer 1

I just posted a simple solution that takes 5 seconds here on a related post here - Facebook debugger: Clear whole site cache

short answer... change your permalinks on a worpdress site in the permalinks settings to a custom one. I just added an underscore.
/_%postname%/
then facebook scrapes them all as new urls, new posts.