CSP (Content-Security-Policy) is an HTTP response header containing directives that instruct browsers how to restrict contents on a page. For instance, the “form-action” directive restricts what origins forms may be submitted to. The CSP form-action directive can limit which URLs the page may submit forms to. This protection can be bypassed in the case of an XSS/HTML injection bug.
Popular Google Chrome extensions are constantly tracking you per default, making it very difficult or impossible for you to opt-out. These extensions will receive your complete browsing history, all your cookies, your secret access-tokens used for authentication (i.e., Facebook Connect) and shared links from sites such as Dropbox and Google Drive. The Detectify team has identified how they are doing it and what options you have to avoid being affected by it.