Episode
Controlling Scripts With Content Security Policy: Hashes, Nonces, and strict-dynamic
- Published
- Jul 14, 2026
- Duration seconds
- 793
- Processing state
not_requested- Canonical source
- https://share.transistor.fm/s/ab8be064
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Summary
This story was originally published on HackerNoon at: https://hackernoon.com/controlling-scripts-with-content-security-policy-hashes-nonces-and-strict-dynamic . Learn how CSP script-src controls what scripts can be executed with allowlists, hashes, nonces, strict-dynamic, script-src-elem and script-src-attr. Check more stories related to cybersecurity at: https://hackernoon.com/c/cybersecurity . You can also check exclusive content about #content-security-policy , #csp , #web-security , #browser-security , #xss , #javascript-security , #xss-prevention , #hackernoon-top-story , and more. This story was written by: @darevskaya . Learn more about this writer by checking @darevskaya's about page, and for more stories, please visit hackernoon.com . Content Security Policy’s script-src directive controls which scripts a page can run, but how you use it depends on the case. Origin allowlists are simple, but they trust every script from an allowed domain. Hashes work well for static inline scripts. Nonces are better for dynamic HTML generated per response. strict-dynamic helps when a trusted script needs to load other scripts. For legacy inline event handlers, script-src-elem and script-src-attr can make CSP adoption more gradual.