Hi John, what's the easiest way to exclude a link when GWT reports an error?

He didn't like the Gravatar links..


Errors
Invalid URL
This is not a valid URL. Please correct it and resubmit.
4
URL: //www.gravatar.com/avatar/d5354cf4d005c175ecc3c486e1730788?s=60&default=http%3A%2F%2Fwww.mauzaza.com%2Fcomponents%2Fcom_k2%2Fimages%2Fplaceholder%2Fuser.png
Parent tag: image
Tag: loc
8364
Mar 26, 2015
URL: //www.gravatar.com/avatar/543c8ced2f2a38277a0fba3d2210c58a?s=60&default=http%3A%2F%2Fwww.mauzaza.com%2Fcomponents%2Fcom_k2%2Fimages%2Fplaceholder%2Fuser.png
Parent tag: image
Tag: loc
8774
Mar 26, 2015
URL: //www.gravatar.com/avatar/d5354cf4d005c175ecc3c486e1730788?s=60&default=http%3A%2F%2Fwww.mauzaza.com%2Fcomponents%2Fcom_k2%2Fimages%2Fplaceholder%2Fuser.png
Parent tag: image
Tag: loc
8981
Mar 26, 2015

Thank you
Regards