_:vb50821443 . . . _:vb50821445 . _:vb50821443 "Brandon Sterne" . . "Content Security Policy 1.0" . _:vb50821445 . _:vb50821444 . _:vb50821444 "Adam Barth" . "2015-02-19" . _:vb50821443 . . . _:vb50821445 . . _:vb50821444 .