a '{type}' handler threw; other handlers were unaffected.

Warnings reference › bus.throw:*:*

Identifier

bus.throw:*:*

Raised by

The grid (core)

Since

1.0.1

What happened

One of your event handlers threw. Delivery is isolated per handler, so every other subscriber to that event still ran and the grid carried on. The key carries the subscription name and an identity for the handler, so a handler throwing on every scroll event produces one line rather than thousands.

The fix

The error is attached to the console line, with its stack.

Reference

Covered in full at the API reference.