Constraint Validation API

- LS

API for better control over form field validation. Includes support for checkValidity(), setCustomValidity(), reportValidity() and validation states.

Chrome

  1. 4 - 14: Support unknown
  2. 15 - 24: Partial support
  3. 25 - 39: Partial support
  4. 40 - 124: Supported
  5. 125: Supported
  6. 126 - 128: Supported

Edge

  1. 12 - 13: Partial support
  2. 14 - 16: Partial support
  3. 17 - 124: Supported
  4. 125: Supported

Safari

  1. 3.1 - 5: Support unknown
  2. 5.1 - 7: Partial support
  3. 7.1 - 9.1: Partial support
  4. 10 - 17.4: Supported
  5. 17.5: Supported
  6. 17.6 - TP: Supported

Firefox

  1. 2 - 3.6: Not supported
  2. 4 - 28: Partial support
  3. 29 - 48: Partial support
  4. 49 - 50: Partial support
  5. 51 - 125: Supported
  6. 126: Supported
  7. 127 - 129: Supported

Opera

  1. 9 - 11.5: Support unknown
  2. 11.6 - 12.1: Partial support
  3. 15 - 26: Partial support
  4. 27 - 108: Supported
  5. 109: Supported

IE

  1. 5.5 - 9: Not supported
  2. 10: Partial support
  3. 11: Partial support

Chrome for Android

  1. 124: Supported

Safari on iOS

  1. 3.2 - 4.3: Support unknown
  2. 5 - 6.1: Partial support
  3. 7 - 9.3: Partial support
  4. 10 - 17.4: Supported
  5. 17.5: Supported
  6. 17.6: Supported

Samsung Internet

  1. 4 - 23: Supported
  2. 24: Supported

Opera Mini

  1. all: Not supported

Opera Mobile

  1. 10 - 11.5: Support unknown
  2. 12 - 12.1: Partial support
  3. 80: Supported

UC Browser for Android

  1. 15.5: Supported

Android Browser

  1. 2.1 - 3: Support unknown
  2. 4 - 4.3: Partial support
  3. 4.4 - 4.4.4: Partial support
  4. 124: Supported

Firefox for Android

  1. 125: Supported

QQ Browser

  1. 14.9: Supported

Baidu Browser

  1. 13.52: Supported

KaiOS Browser

  1. 2.5: Partial support
  2. 3: Supported
Resources:
MDN article on constraint validation
`reportValidity()` ponyfill