Screen readers with touch screen support typically include a "touch exploration" mode where you can tap or slowly drag around the screen and listen to feedback on what you're touching, before it activates.
Setting aria-touchpassthrough on an HTML element indicates to a screen reader that touch events targeted at this element should be passed through directly, instead.
Interoperability and CompatibilityGecko: No signal
WebKit: No signal
Web developers: No signals
The bug thread has broad consensus that something like this is needed, including from Apple/WebKit and from web developers. There's little consensus on the proper name or syntax for this feature.
Goals for experimentation
Test aria-touchpassthrough on a real-world mobile site that enables direct interaction with touch, but is potentially accessible to visually-impaired users.
Will this feature be supported on all six Blink platforms (Windows, Mac, Linux, Chrome OS, Android, and Android WebView)?No
This feature is only needed on platforms with a screen reader for visually-impaired users that has touch support. This initial origin trial will only be for Android.No
Link to entry on the Chrome Platform Statushttps://chromestatus.com/feature/5169564486729728