core.error

This focused page is derived from the mechanically checked full event inventory.

Subscribe

const unsubscribe = Arcane.events.on('core.error', function handleCoreError(data) {
    // Read only the documented fields from data here.
    console.info('Received core.error.');
});

// Stop listening when this page no longer needs the event.
function stopListeningForCoreError() {
    unsubscribe();
}

globalThis.addEventListener('pagehide', stopListeningForCoreError, {once: true});

Delivery

Live, future-only notification.

Hosts

Core-backed Microsoft NT, Linux, and development HTTP hosts.

When it fires

The Core cannot decode or handle an inbound control frame.

Event data

A normalized error object: code and message identify the failure; fields such as resolution, technicalMessage, status, retryable, and diagnosticId provide recovery and diagnostic context when available.

Reference group

Events