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Import maps

- UNOFF

Import maps allow control over what URLs get fetched by JavaScript import statements and import() expressions.

Chrome

  1. ❌ 4 - 73: Not supported
  2. ❌ 74 - 88: Disabled by default
  3. ✅ 89 - 140: Supported
  4. ✅ 141: Supported
  5. ✅ 142 - 144: Supported

Edge

  1. ❌ 12 - 18: Not supported
  2. ❌ 79 - 88: Disabled by default
  3. ✅ 89 - 140: Supported
  4. ✅ 141: Supported

Safari

  1. ❌ 3.1 - 16.3: Not supported
  2. ✅ 16.4 - 18.6: Supported
  3. ✅ 26.0: Supported
  4. ✅ 26.1 - TP: Supported

Firefox

  1. ❌ 2 - 101: Not supported
  2. ❌ 102 - 107: Disabled by default
  3. ✅ 108 - 143: Supported
  4. ✅ 144: Supported
  5. ✅ 145 - 147: Supported

Opera

  1. ❌ 9 - 60: Not supported
  2. ❌ 62 - 75: Disabled by default
  3. ✅ 76 - 121: Supported
  4. ✅ 122: Supported

IE

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

Chrome for Android

  1. ✅ 141: Supported

Safari on iOS

  1. ❌ 3.2 - 16.3: Not supported
  2. ✅ 16.4 - 18.6: Supported
  3. ✅ 26.0: Supported
  4. ✅ 26.1: Supported

Samsung Internet

  1. ❌ 4 - 14.0: Not supported
  2. ✅ 15.0 - 27: Supported
  3. ✅ 28: 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. ✅ 141: Supported

Firefox for Android

  1. ✅ 143: 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:
Using ES modules in browsers with import-maps
WebKit feature request bug
Firefox feature request bug
Proposal information