Can I use
?

Web Workers

- LS

Method of running scripts in the background, isolated from the web page

Chrome

  1. ✅ 4 - 137: Supported
  2. ✅ 138: Supported
  3. ✅ 139 - 141: Supported

Edge

  1. ✅ 12 - 137: Supported
  2. ✅ 138: Supported

Safari

  1. ❌ 3.1 - 3.2: Not supported (but has polyfill available)
  2. ✅ 4 - 18.4: Supported
  3. ✅ 18.5: Supported
  4. ✅ 26.0 - TP: Supported

Firefox

  1. ❌ 2 - 3: Not supported (but has polyfill available)
  2. ✅ 3.5 - 139: Supported
  3. ✅ 140: Supported
  4. ✅ 141 - 143: Supported

Opera

  1. ❌ 9 - 9.6: Not supported
  2. ❌ 10 - 10.5: Not supported (but has polyfill available)
  3. ✅ 10.6 - 116: Supported
  4. ✅ 117: Supported

IE

  1. ❌ 5.5: Not supported
  2. ❌ 6 - 9: Not supported (but has polyfill available)
  3. ✅ 10: Supported
  4. ✅ 11: Supported

Chrome for Android

  1. ✅ 138: Supported

Safari on iOS

  1. ❌ 3.2 - 4.3: Not supported
  2. ✅ 5 - 18.4: Supported
  3. ✅ 18.5: Supported
  4. ✅ 26.0: Supported

Samsung Internet

  1. ✅ 4 - 27: Supported
  2. ✅ 28: Supported

Opera Mini

  1. ❌ all: Not supported

Opera Mobile

  1. ❌ 10: Not supported (but has polyfill available)
  2. ✅ 11 - 12.1: Supported
  3. ✅ 80: Supported

UC Browser for Android

  1. ✅ 15.5: Supported

Android Browser

  1. ✅ 2.1: Supported
  2. ❌ 2.2 - 4.3: Not supported
  3. ✅ 4.4 - 4.4.4: Supported
  4. ✅ 138: Supported

Firefox for Android

  1. ✅ 140: Supported

QQ Browser

  1. ✅ 14.9: Supported

Baidu Browser

  1. ✅ 13.52: Supported

KaiOS Browser

  1. ✅ 2.5: Supported
  2. ✅ 3: Supported
Resources:
Polyfill for IE (single threaded)
Tutorial
MDN Web Docs - Using Web Workers
Web Worker demo
Sub-features:
Shared Web Workers