Apply Unicode flag to `pattern' content attribute of INPUT element

Apply the unicode flag to `pattern' attribute values. Syntax checking will be stricter, and '.' matches to a surrogate pair, and some other benefits.



Working draft or equivalent

Status in Chromium


Enabled by default (launch bug) in:

  • Chrome for desktop release 53
  • Chrome for Android release 53
  • Android WebView release 53
  • Opera release 40
  • Opera for Android release 40

Consensus & Standardization

  • Shipped
  • No public signals
  • No public signals
  • No signals


Last updated on 2017-06-14