This feature adds a dictionary as a second argument for document.createElement. The dictionary 'is' member is used to set custom element attribute. For now both syntaxes will be supported. Later on after v1 custom elements ( are shipped the string argument will be deprecated.



Established standard

Status in Chromium


Enabled by default (tracking bug) in:

  • Chrome for desktop release 56
  • Chrome for Android release 56
  • Android WebView release 56

Consensus & Standardization

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

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


Last updated on 2020-11-09