Blink has placed DOM attributes on instances instead of prototypes. However, the Web IDL spec requires that DOM attributes must be placed on prototype chains (except for a few exceptions such as static attributes and [Unforgeable].) We move DOM attributes on instances to prototype chains following the spec.

Documentation

Specification

Established standard

Status in Chromium

Blink


Enabled by default (tracking bug) in:

  • Chrome for desktop release 43
  • Chrome for Android release 43
  • Android WebView release 43

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.

  • Shipped/Shipping
  • Shipped/Shipping
  • No signal
  • No signals

Owners

Last updated on 2020-11-09