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Content Security Policy Level 2

Use content security policy to mitigate cross-site scripting attacks by only allowing certain types of resources. CSP 2 adds hash-source and nonce-source to the list of supported directives, as well as five new directives.

Last updated on : 2025-11-11

Browser Versions

Edge

Firefox

Chrome

Safari

Opera

5.5 - 11

12 - 14

15 - 18

79 - 142

2 - 30

31 - 100

101 - 147

4 - 35

36 - 39

40 - 145

3.2 - 9

10 - 26.2

9.5 - 22

23 - 26

27 - 122

Fully Supported

Partially

No Support

Browser Compatibility

Content Security Policy Level 2 on IE is not supported on any IE versions.

Content Security Policy Level 2 on Edge is fully supported on 79-142, partially supported on 15-18, and not supported on 12-14 Edge versions.

Content Security Policy Level 2 on Firefox is fully supported on 101-147, partially supported on 31-100, and not supported on 2-30 Firefox versions.

Content Security Policy Level 2 on Chrome is fully supported on 40-145, partially supported on 36-39, and not supported on 4-35 Chrome versions.

Content Security Policy Level 2 on Safari is fully supported on 10-26.2, and not supported on 3.2-9 Safari versions.

Content Security Policy Level 2 on Opera is fully supported on 27-122, partially supported on 23-26, and not supported on 9.5-22 Opera versions.

Content Security Policy Level 2 on Safari on iOS is fully supported on 10-26.1, and not supported on 3.2-9 Safari on iOS versions.

Content Security Policy Level 2 on Android Browser is fully supported on 97-142, and not supported on 2.3-4 Android Browser versions.

Content Security Policy Level 2 on Opera Mobile is fully supported on 64-80, and not supported on 10-12 Opera Mobile versions.

Content Security Policy Level 2 on Chrome for Android is fully supported on all Chrome for Android versions.

Content Security Policy Level 2 on Firefox for Android is fully supported on 98-144 and partially supported on 95-96 Firefox for Android versions.

Content Security Policy Level 2 on Samsung Internet is fully supported on all Samsung Internet versions.

Browser Support for Content Security Policy Level 2

Content Security Policy Level 2 on Chrome

Content Security Policy Level 2 on Safari

Content Security Policy Level 2 on Firefox

Content Security Policy Level 2 on Internet Explorer

Content Security Policy Level 2 on Opera

Content Security Policy Level 2 on Edge

References

Data sourced from

High

Overall Browser Compatibility Score

Note:Content Security Policy Level 2 shows a browser compatibility score of 92. This is a collective score out of 100 to represent browser support of a web technology. The higher this score is, the greater is the browser compatibility. The browser compatibility score is not a 100% reflection for every browser and the web technology support. However, it does give you an estimate on how much you should rely on a particular web technology in terms of browser compatibility.

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