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Shadow DOM v0

Method of establishing and maintaining functional boundaries between DOM trees and how these trees interact with each other within a document, thus enabling better functional encapsulation within the DOM.

Spec	https://www.w3.org/TR/shadow-dom/
Status	W3C Working Draft

IE	Edge	Firefox	Chrome	Safari	Opera
			73
		65 ⁽²⁾	72
		64 ⁽²⁾	71	TP
11	18	63 ⁽²⁾	70	12	56
10	17	62 ⁽²⁾	69	11.1	55
9	16	61 ⁽²⁾	68	11	54
8	15	60 ⁽²⁾	67	10.1	53
Show all
7	14	59 ⁽²⁾	66	10	52
6	13	58 ⁽¹⁾	65	9.1	51
5.5	12	57 ⁽¹⁾	64	9	50
		56 ⁽¹⁾	63	8	49
		55 ⁽¹⁾	62	7.1	48
		54 ⁽¹⁾	61	7	47
		53 ⁽¹⁾	60	6.1	46
		52 ⁽¹⁾	59	6	45
		51 ⁽¹⁾	58	5.1	44
		50 ⁽¹⁾	57	5	43
		49 ⁽¹⁾	56	4	42
		48 ⁽¹⁾	55	3.2	41
		47 ⁽¹⁾	54	3.1	40
		46 ⁽¹⁾	53		39
		45 ⁽¹⁾	52		38
		44 ⁽¹⁾	51		37
		43 ⁽¹⁾	50		36
		42 ⁽¹⁾	49		35
		41 ⁽¹⁾	48		34
		40 ⁽¹⁾	47		33
		39 ⁽¹⁾	46		32
		38 ⁽¹⁾	45		31
		37 ⁽¹⁾	44		30
		36 ⁽¹⁾	43		29
		35 ⁽¹⁾	42		28
		34 ⁽¹⁾	41		27
		33 ⁽¹⁾	40		26
		32 ⁽¹⁾	39		25
		31 ⁽¹⁾	38		24
		30 ⁽¹⁾	37		23
		29 ⁽¹⁾	36		22
		28	35		21 ^(*)
		27	34 ^(*)		20 ^(*)
		26	33 ^(*)		19 ^(*)
		25	32 ^(*)		18 ^(*)
		24	31 ^(*)		17 ^(*)
		23	30 ^(*)		16 ^(*)
		22	29 ^(*)		15 ^(*)
		21	28 ^(*)		12.1
		20	27 ^(*)		12
		19	26 ^(*)		11.6
		18	25 ^(*)		11.5
		17	24		11.1
		16	23		11
		15	22		10.6
		14	21		10.5
		13	20		10.0-10.1
		12	19		9.5-9.6
		11	18		9
		10	17
		9	16
		8	15
		7	14
		6	13
		5	12
		4	11
		3.6	10
		3.5	9
		3	8
		2	7
			6
			5
			4

iOS Safari	Opera Mini	Android Browser	Blackberry Browser	Opera Mobile	Android Chrome	Android Firefox	IE Mobile	Android UC Browser	Samsung Internet	QQ Browser	Baidu Browser
12	all	67	10	46	70	63	11	11.8	7.2	1.2	7.12
11.3-11.4		4.4.3-4.4.4 ^(*)	7	12.1			10		6.2
11.0-11.2		4.4 ^(*)		12					5
10.3		4.2-4.3		11.5					4 ^(*)
Show all
10.0-10.2		4.1		11.1
9.3		4		11
9.0-9.2		3		10
8.1-8.4		2.3
8		2.2
7.0-7.1		2.1
6.0-6.1
5.0-5.1
4.2-4.3
4.0-4.1
3.2

Notes

Supported in Firefox behind the dom.webcomponents.enabled flag.
Supported in Firefox behind the dom.webcomponents.shadowdom.enabled flag.

^* Partial support with prefix.

Resources

Data by caniuse.com
Licensed under the Creative Commons Attribution License v4.0.
http://caniuse.com/#feat=shadowdom