When a window is opened with noopener, Chrome should not clone the sessionStorage of its opener; it should instead start from an empty sessionStorage namespace.


This is a bugfix to match the HTML specification, which added this behavior in 2017: https://github.com/whatwg/html/pull/2832

Status in Chromium


Enabled by default (tracking bug)

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 signals


Search tags

sessionStorage, noopener,

Last updated on 2021-12-13