Constraint Validation API

- LS

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

IE

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

Edge

  1. 12 - 13: Partial support
  2. 14 - 16: Partial support
  3. 17 - 79: Supported
  4. 80: 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 - 72: Supported
  6. 73: Supported
  7. 74 - 75: Supported

Chrome

  1. 4 - 14: Support unknown
  2. 15 - 24: Partial support
  3. 25 - 39: Partial support
  4. 40 - 79: Supported
  5. 80: Supported
  6. 81 - 83: Supported

Safari

  1. 3.1 - 5: Support unknown
  2. 5.1 - 7: Partial support
  3. 7.1 - 9.1: Partial support
  4. 10 - 12.1: Supported
  5. 13: Supported
  6. TP: Supported

Opera

  1. 9 - 11.5: Support unknown
  2. 11.6 - 12.1: Partial support
  3. 15 - 26: Partial support
  4. 27 - 65: Supported
  5. 66: Supported

iOS Safari

  1. 3.2 - 4.3: Support unknown
  2. 5 - 6.1: Partial support
  3. 7 - 9.3: Partial support
  4. 10 - 13.1: Supported
  5. 13.2: Supported
  6. 13.3: Supported

Opera Mini

  1. all: Not supported

Android Browser

  1. 2.1 - 3: Support unknown
  2. 4 - 4.3: Partial support
  3. 4.4 - 4.4.4: Partial support
  4. 80: Supported

Blackberry Browser

  1. 7: Support unknown
  2. 10: Partial support

Opera Mobile

  1. 10 - 11.5: Support unknown
  2. 12 - 12.1: Partial support
  3. 46: Supported

Chrome for Android

  1. 80: Supported

Firefox for Android

  1. 68: Supported

IE Mobile

  1. 10: Partial support
  2. 11: Partial support

UC Browser for Android

  1. 12.12: Supported

Samsung Internet

  1. 4 - 9.2: Supported
  2. 10.1: Supported

QQ Browser

  1. 1.2: Partial support

Baidu Browser

  1. 7.12: Supported

KaiOS Browser

  1. 2.5: Partial support
Resources:
MDN article on constraint validation
`reportValidity()` ponyfill
MS Edge UserVoice request for reportValidity