Consider Object.toJSON() method

[samchon]

Some program defines custom error type (e.g. MyError) and the custom error type also may have the toJSON() method, that would be used in JSON.stringify(). In such reason, I recommend serializeError function to inspects the toJSON() method first.

class MyError extends Error
{
    public readonly code: number;
    public readonly type: string;
    
    public constructor(code: number, type: string, message: string);
    public toJSON(): object
    {
        return {
            name: this.name, stack: this.stack, message: this.message,
            code: this.code, type: this.type
        };
    }
}

[sindresorhus]

Makes sense. PR welcome.

[moltar]

On the other hand, I am using serializeError to implement toJSON method:

  public toJSON() {
    return serializeError(this)
  }

So this would be a breaking change.

[sindresorhus]

We could use a Symbol to prevent self-recursive serialization.