FormData how to get or set boundary in multipart/form-data - Angular

问题

I have a mini app, where I have to post a form data to an endpoint from browser.

This is my post:

var formData = new FormData();
formData.append('blobImage', blob, 'imagem' + (new Date()).getTime());

return $http({
  method: 'POST',
  url: api + '/url',
  data: formData,
  headers: {'Content-Type': 'multipart/form-data'}
})

Boundaries seems to be added by formData to the parameter, however, I cannot get it to send in the header, how should I done?

回答1:

Well, seems that the headers ContentType should be undefined, in order to add the correct boundaries

来源：https://stackoverflow.com/questions/40351429/formdata-how-to-get-or-set-boundary-in-multipart-form-data-angular