My Promise is fulfilled in chrome but failing in safari

This is my code :

  postReq: function postReq(url, data, option) {
    const self = this;
    return axios({
      method: 'post',
      url: url,
      data: data,
      onUploadProgress: function (progressEvent) {
        if (option) {
          option.onUploadProgress(progressEvent);
        }
      },
      transformResponse: function (responseData) {
        console.log(responseData);
        return self.parseJson(responseData);
      },
    });
  },

   const promises = urls.map((url) => self.postReq(url, postData));
   console.log(promises);

I am getting this error . Thanks for reading.