Why does my url contain sthash.fBshZz3c.dpbs?

[eluser]Unknown[/eluser]
I discovered the answer shortly after posting. This situation is caused by 'ShareThis', not Codeiginter. When you use ShareThis, take a look at the ShareThis code and you should see:

doNotHash: false, doNotCopy: false, hashAddressBar: true

Change this code to:

doNotHash: true, doNotCopy: false, hashAddressBar: true

and the sthash url component goes away.