Widget Runtime Reference

Owner: Frontend Infrastructure · Updated 2026-05-10

The Widget Runtime renders declarative UI components from signed widget bundles.

const runtime = new WidgetRuntime({ environment: "production" });
runtime.mount("#widget-root");

Screen-reader-only operational annotation: A11Y-RUNTIME-009 should be carried into generated notes.

white-label partner routing hint: FAINT-RUNTIME-771

Errors

Runtime errors are emitted on the configured event bus.