utnalove on "[Plugin: W3 Total Cache] Response Code: 206 from facebook linter"

Hello,

when the plugin is ON, I cannot use the FB linter, since it receives just a little part of the header.
When the plugin is off, all works fine.

Please help. Why there is this 206 error?
You can check it here.

Regards

http://wordpress.org/extend/plugins/w3-total-cache/