Wrong handle of Error object

[Asing1001]

winston-transport/index.js

Line 90 in 47babab

transformed = this.format.transform(Object.assign({}, info), this.format.options);

Problem

logger.error(new Error("msg")) result in error: undefined.

Root cause

Error object stack and message is not enumerable, Object.assign will not copy non-enumerable property.

Reproduce

Object.assign({}, new Error("msg"))
// {}

[indexzero]

This will be fixed shortly by winston@3.2.0. See: winstonjs/winston#1562