A Stage 3 proposal makes ECMAScript a syntactic superset of JSON by allowing line separator (U+2028) and paragraph separator (U+2029) in string literals.


Working draft or equivalent

Status in Chromium


Enabled by default (tracking bug) in:

  • Chrome for desktop release 66
  • Chrome for Android release 66
  • Android WebView release 66

Consensus & Standardization

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

  • Positive
  • Positive
  • Shipped/Shipping
  • Strongly positive

Search tags

json, string literals, unicode,

Last updated on 2020-11-09