Axios请求捕获被击中

Question

当我使用axios请求时，在打印到控制台时会得到预期的videoData，但是由于某种原因我击中了catch语句。看来我的路由已正确设置，我的整个api路由正在执行并保存到数据库中，但我的catch语句正在执行，并出现控制台画面错误，如下所示

Axios请求

axios
    .post("/api/videos/upload", videoData)
    .then(res => {
      dispatch({
        type: ADD_VIDEO,
        payload: res.data
      });

      //res.json({ msg: "Success" });
    })
    .catch(err => {
      console.log("RESPONSE" + err.response.data);

      dispatch({
        type: GET_ERRORS,
        payload: err.response.data
      });
    });

API路由

    router.post(
  "/upload",
  passport.authenticate("jwt", { session: false }),
  (req, res) => {
    console.log(req.body);

    const { errors, isValid } = validateUpload(req.body);

    //Check Validation
    if (!isValid) {
      console.log("in videos!!");
      //Return any errors with 400 status
      return res.status(400).json(errors);
    }
    console.log("SCHEMA BEFORE");
    const newVideo = new Video({
      user: req.body.user,
      description: req.body.description,
      key: req.body.key,
      thumbnail: req.body.thumbnail,
      owner: req.body.owner
    });
    console.log("SCHEMA AFTER");

    newVideo
      .save()
      .then(video => {
        console.log("SAVED?");
        res.json(video);
      })
      .catch(err => {
        console.log("COULDNT SAVE");
        res.json(err);
      });
  }
);