1 { cancelable: true, message: "Uncaught Error: foo", filename: "[WILDCARD]/queue_microtask_error_handled.ts", lineno: 18, colno: 9, error: Error: foo at [WILDCARD]/queue_microtask_error_handled.ts:18:9 at ext:core/[WILDCARD] } onerror() called Error: foo at [WILDCARD]/queue_microtask_error_handled.ts:18:9 at ext:core/[WILDCARD] 2