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Shadow DOM v1

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 & CSS.

Spec https://www.w3.org/TR/shadow-dom/
Status W3C Working Draft
IE Edge Firefox Chrome Safari Opera
      73    
    65 72    
    64 71 TP (1)  
11 18 63 70 12 (1) 56
10 17 62 (3) 69 11.1 (1) 55
9 16 61 (3) 68 11 (1) 54
8 15 60 (3) 67 10.1 (1) 53
Show all
7 14 59 (3) 66 10 (1) 52
6 13 58 (2) 65 9.1 51
5.5 12 57 64 9 50
    56 63 8 49
    55 62 7.1 48
    54 61 7 47
    53 60 6.1 46
    52 59 6 45
    51 58 5.1 44
    50 57 5 43
    49 56 4 42
    48 55 3.2 41
    47 54 3.1 40
    46 53   39
    45 52   38
    44 51   37
    43 50   36
    42 49   35
    41 48   34
    40 47   33
    39 46   32
    38 45   31
    37 44   30
    36 43   29
    35 42   28
    34 41   27
    33 40   26
    32 39   25
    31 38   24
    30 37   23
    29 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 (1) all 67 10 46 70 63 11 11.8 7.2 1.2 7.12
11.3-11.4 (1)   4.4.3-4.4.4 7 12.1     10   6.2    
11.0-11.2 (1)   4.4   12         5    
10.3 (1)   4.2-4.3   11.5         4    
Show all
10.0-10.2 (1)   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

Shadow DOM v0 was implemented in Chrome/Opera but other browser vendors are implementing v1.

  1. Certain CSS selectors do not work (:host > .local-child) and styling slotted content (::slotted) is buggy.

  2. Enabled through the "dom.webcomponents.enabled" preference in about:config

  3. Enabled through the "dom.webcomponents.shadowdom.enabled" preference in about:config

Resources

Data by caniuse.com
Licensed under the Creative Commons Attribution License v4.0.
http://caniuse.com/#feat=shadowdomv1