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Declarative Shadow DOM

- LS

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

Chrome

  1. ❌ 4 - 84: Not supported
  2. ❌ 85 - 89: Disabled by default
  3. ◐ 90 - 110: Partial support
  4. ✅ 111 - 144: Supported
  5. ✅ 145: Supported
  6. ✅ 146 - 148: Supported

Edge

  1. ❌ 12 - 90: Not supported
  2. ◐ 91 - 110: Partial support
  3. ✅ 111 - 144: Supported
  4. ✅ 145: Supported

Safari

  1. ❌ 3.1 - 16.3: Not supported
  2. ✅ 16.4 - 26.2: Supported
  3. ✅ 26.3: Supported
  4. ✅ 26.4 - TP: Supported

Firefox

  1. ❌ 2 - 122: Not supported
  2. ✅ 123 - 146: Supported
  3. ✅ 147: Supported
  4. ✅ 148 - 150: Supported

Opera

  1. ❌ 9 - 76: Not supported
  2. ◐ 77 - 96: Partial support
  3. ✅ 97 - 124: Supported
  4. ✅ 125: Supported

IE

  1. ❌ 5.5 - 10: Not supported
  2. ❌ 11: Not supported

Chrome for Android

  1. ✅ 145: Supported

Safari on iOS

  1. ❌ 3.2 - 16.3: Not supported
  2. ✅ 16.4 - 26.2: Supported
  3. ✅ 26.3: Supported
  4. ✅ 26.4: Supported

Samsung Internet

  1. ❌ 4 - 14.0: Not supported
  2. īš– 15.0: Support unknown
  3. ◐ 16.0 - 21: Partial support
  4. ✅ 22 - 28: Supported
  5. ✅ 29: Supported

Opera Mini

  1. ❌ all: Not supported

Opera Mobile

  1. ❌ 10 - 12.1: Not supported
  2. ✅ 80: Supported

UC Browser for Android

  1. ✅ 15.5: Supported

Android Browser

  1. ❌ 2.1 - 4.4.4: Not supported
  2. ✅ 145: Supported

Firefox for Android

  1. ✅ 147: Supported

QQ Browser

  1. ❌ 14.9: Not supported

Baidu Browser

  1. ✅ 13.52: Supported

KaiOS Browser

  1. ❌ 2.5: Not supported
  2. ❌ 3: Not supported
Resources:
WebKit support bug
Firefox implementation bug
Declarative Shadow DOM - web.dev article
A ponyfill of the Declarative Shadow DOM API