tasks.get returns null on not found

src/routes/tasks.js

@@ -30,6 +30,7 @@ async function get(req, res, next) {
 
     const [error, task] = await safe(tasks.get(req.params.taskId));
     if (error) return next(BoxError.toHttpError(error));
+    if (!task) return next(new HttpError(404, 'task not found'));
 
     next(new HttpSuccess(200, tasks.removePrivateFields(task)));
 }