Content Security Policy Level 2

Mitigate cross-site scripting attacks by only allowing certain sources of script, style, and other resources. CSP 2 adds hash-source, nonce-source, and five new directives

Spec	https://www.w3.org/TR/CSP2/
Status	W3C Recommendation

IE	Edge	Firefox	Chrome	Safari	Opera
			103
		100	102
		99	101	TP
11	99	98	100	15.4	83
10	98	97	99	15.2-15.3	82
9	97	96	98	15.1	81
8	96	95	97	15	80
Show all
7	95	94	96	14.1	79
6	94	93	95	14	78
5.5	93	92	94	13.1	77
	92	91	93	13	76
	91	90	92	12.1	75
	90	89	91	12	74
	89	88	90	11.1	73
	88	87	89	11	72
	87	86	88	10.1	71
	86	85	87	10	70
	85	84	86	9.1	69
	84	83	85	9	68
	83	82	84	8	67
	81	81	83	7.1	66
	80	80	81	7	65
	79	79	80	6.1	64
	18 ⁽⁶⁾	78	79	6	63
	17 ⁽⁶⁾	77	78	5.1	62
	16 ⁽⁶⁾	76	77	5	60
	15 ⁽⁶⁾	75	76	4	58
	14	74	75	3.2	57
	13	73	74	3.1	56
	12	72	73		55
		71	72		54
		70	71		53
		69	70		52
		68	69		51
		67	68		50
		66	67		49
		65	66		48
		64	65		47
		63	64		46
		62	63		45
		61	62		44
		60	61		43
		59	60		42
		58	59		41
		57	58		40
		56	57		39
		55	56		38
		54	55		37
		53	54		36
		52	53		35
		51	52		34
		50	51		33
		49	50		32
		48	49		31
		47	48		30
		46	47		29
		45	46		28
		44 ⁽³⁾	45		27
		43 ⁽³⁾	44		26 ⁽⁵⁾
		42 ⁽³⁾	43		25 ⁽⁴⁾
		41 ⁽³⁾	42		24 ⁽⁴⁾
		40 ⁽³⁾	41		23 ⁽⁴⁾
		39 ⁽³⁾	40		22
		38 ⁽³⁾	39 ⁽⁵⁾		21
		37 ⁽³⁾	38 ⁽⁴⁾		20
		36 ⁽³⁾	37 ⁽⁴⁾		19
		35 ⁽²⁾	36 ⁽⁴⁾		18
		34 ⁽¹⁾	35		17
		33 ⁽¹⁾	34		16
		32 ⁽¹⁾	33		15
		31 ⁽¹⁾	32		12.1
		30	31		12
		29	30		11.6
		28	29		11.5
		27	28		11.1
		26	27		11
		25	26		10.6
		24	25		10.5
		23	24		10.0-10.1
		22	23		9.5-9.6
		21	22		9
		20	21
		19	20
		18	19
		17	18
		16	17
		15	16
		14	15
		13	14
		12	13
		11	12
		10	11
		9	10
		8	9
		7	8
		6	7
		5	6
		4	5
		3.6	4
		3.5
		3
		2

Safari on iOS	Opera Mini	Android Browser	Blackberry Browser	Opera Mobile	Android Chrome	Android Firefox	IE Mobile	Android UC Browser	Samsung Internet	QQ Browser	Baidu Browser	KaiOS Browser
15.4	all	99	10	64	100	98	11	12.12	16.0	10.4	7.12	2.5
15.2-15.3		4.4.3-4.4.4	7	12.1			10		15.0
15.0-15.1		4.4		12					14.0
14.5-14.8		4.2-4.3		11.5					13.0
Show all
14.0-14.4		4.1		11.1					12.0
13.4-13.7		4		11					11.1-11.2
13.3		3		10					10.1
13.2		2.3							9.2
13.0-13.1		2.2							8.2
12.2-12.5		2.1							7.2-7.4
12.0-12.1									6.2-6.4
11.3-11.4									5.0-5.4
11.0-11.2									4
10.3
10.0-10.2
9.3
9.0-9.2
8.1-8.4
8
7.0-7.1
6.0-6.1
5.0-5.1
4.2-4.3
4.0-4.1
3.2

Notes

Firefox 31-34 is missing the child-src, frame-ancestors, base-uri, and form-action directives.
Firefox 35 is missing the child-src, frame-ancestors, and form-action directives.
Firefox 36-44 is missing the child-src directives.
Chrome 36-38 & Opera 23-25 are missing the child-src, frame-ancestors, base-uri, and form-action directives.
Chrome 39 and Opera 26 are missing the child-src, base-uri, and form-action directives.
Edge has broken nonce support as it ignores nonces on sourced scripts.

Bugs

Partial support in Edge refers to broken nonce suport which will lead to breakages since sourced script tags with a valid nonce will get blocked.

Resources

Data by caniuse.com
Licensed under the Creative Commons Attribution License v4.0.
https://caniuse.com/contentsecuritypolicy2

Name	Support Tables
Version
Badge
Last Updated	2022-04-11T17:49:08Z