Proposal for Locked Mode API

[IcySteam]

Introduction

In the education sector, there is a demand for applications to be able to serve students a low-stakes test, where the whole operating system is put in a restricted environment, preventing the student from using any other apps or OS features outside of the test itself. It is not currently possible for a web app to trigger this mode.

We’d like to propose a new Web feature: Locked Mode API where a site prompts the user to enter a locked-down fullscreen mode, and the user cannot 1) use other apps and OS features or 2) exit this mode without notifying the site.

High-stakes testing is a non-goal for the API as it cannot stay secure against all adversaries.

Read the complete Explainer.

Feedback

I welcome feedback in this thread, but encourage you to file bugs against the Explainer.