Block tab-under navigations

A tab-under is when a page both opens a popup to some destination (usually where the user wants to go) AND navigates the opener page to some third party content (usually an advertisement). Chrome will block these navigations and show native UI to the user so they can follow the redirect just in case.

Status in Chromium

Blink components: UI>Browser>TabContents

Enabled by default (tracking bug) in:

Chrome for desktop release 68
Chrome for Android release 68
Opera release 55
Opera for Android release 55

Consensus & Standardization

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

Firefox: No public signals
Edge: No public signals
Safari: No public signals
Web Developers: No signals

Owner

csharrison@chromium.org

Last updated on 2018-05-22