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Declarative Shadow DOM

Proposal to allow rendering elements with shadow dom aka web components using server-side rendering.

Last updated on : 2025-03-16

Browser Versions

Edge

Firefox

Chrome

Safari

Opera

5.5 - 11

12 - 89

90 - 133

2 - 124

125 - 138

4 - 89

90 - 136

3.2 - 16

16.6 - 18.4

9.5 - 76

77 - 114

Fully Supported

Partially

No Support

Browser Compatibility

Declarative Shadow DOM on IE is not supported on any IE versions.

Declarative Shadow DOM on Edge is fully supported on 90-133, and not supported on 12-89 Edge versions.

Declarative Shadow DOM on Firefox is fully supported on 125-138, and not supported on 2-124 Firefox versions.

Declarative Shadow DOM on Chrome is fully supported on 90-136, and not supported on 4-89 Chrome versions.

Declarative Shadow DOM on Safari is fully supported on 16.6-18.4, and not supported on 3.2-16 Safari versions.

Declarative Shadow DOM on Opera is fully supported on 77-114, and not supported on 9.5-76 Opera versions.

Declarative Shadow DOM on Safari on iOS is fully supported on 16.5-18.4, and not supported on 3.2-16.4 Safari on iOS versions.

Declarative Shadow DOM on Android Browser is fully supported on 101-133, and not supported on 2.3-4 Android Browser versions.

Declarative Shadow DOM on Opera Mobile is fully supported on 72-80, and not supported on 10-64 Opera Mobile versions.

Declarative Shadow DOM on Chrome for Android is fully supported on all Chrome for Android versions.

Declarative Shadow DOM on Firefox for Android is fully supported on 123-135, and not supported on 100-122 Firefox for Android versions.

Declarative Shadow DOM on Samsung Internet is fully supported on 15-27, and not supported on 4-14 Samsung Internet versions.

Browser Support for Declarative Shadow DOM

Declarative Shadow DOM on Chrome

Declarative Shadow DOM on Safari

Declarative Shadow DOM on Firefox

Declarative Shadow DOM on Internet Explorer

Declarative Shadow DOM on Opera

Declarative Shadow DOM on Edge

References

Data sourced from

High

Overall Browser Compatibility Score

Note:Declarative Shadow DOM shows a browser compatibility score of 85. 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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