For the current relationship of this specification to others, see this specification group: Security for Web Applications .
| 2016-12-15 | Content Security Policy Level 2 Recommendation |
| 2016-11-08 | Proposed Recommendation |
| 2015-07-21 | Candidate Recommendation |
| 2015-02-19 | Candidate Recommendation |
| 2014-07-03 | Last Call |
| 2014-02-11 | Working Draft |
| 2013-06-04 | Working Draft |
| 2012-12-13 | First Public Draft |