Stop cloning sessionStorage for windows opened with noopener

Category: Offline / Storage
Type: No developer-visible change
Status: Enabled by default (Chrome 89)
Intent stage: Prepare to ship

Summary

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.

Motivation

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

Standards & signals

Firefox: Shipped/Shipping
Safari: No signal
Web developers: No signals
Tracking bug: https://bugs.chromium.org/p/chromium/issues/detail?id=771959

View on chromestatus.com