CSP3: The 'strict-dynamic' source expression.

The 'strict-dynamic' source expression allows script loaded via nonce- or hash-based whitelists to load other script, simplifying the requirements for deployment, and (hopefully!) making it more likely that CSP can reach more sites.




Working draft or equivalent

Status in Chromium


Enabled by default (tracking bug) in:

  • Chrome for desktop release 52
  • Chrome for Android release 52
  • Android WebView release 52
  • Opera release 39
  • Opera for Android release 39

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.

  • Shipped
  • Public support
  • No public signals
  • Positive


Last updated on 2017-08-09