To prevent unintended clicks/taps, quietly discard input events that target cross-origin iframes that have recently resized or moved a non-trivial distance within the embedding page's viewport. The shipped version limits the intervention to cross-origin iframes that are using the V2 feature set of IntersectionObserver (https://github.com/w3c/IntersectionObserver/tree/v2).

Motivation

The motivation is perhaps best conveyed by this hilarious video: https://www.youtube.com/watch?v=3tUmh8OfAiY We would like to prevent untrustworthy embedders from using visual bait-and-switch tactics to induce users to click or tap on a third-party iframe.

Documentation

Specification

No public standards discussion

Status in Chromium

Blink>Input


Enabled by default (tracking bug) in:

  • Chrome for desktop release 77
  • Chrome for Android release 77
  • Android WebView release 77

Consensus & Standardization

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

  • No signal
  • No signal
  • No signal
  • No signals

Owner

Last updated on 2021-03-12