Some of the answers here propose using FormData(), but unfortunately that is a browser object not available in Internet Explorer 9 and below. If you need to support those older browsers, you will need a backup strategy such as using <iframe> or Flash.
There are already many Angular.js modules to perform file uploading. These two have explicit support for older browsers:
- https://github.com/leon/angular-upload – uses iframes as a fallback
- https://github.com/danialfarid/ng-file-upload – uses FileAPI/Flash as a fallback
And some other options:
- https://github.com/nervgh/angular-file-upload/
- https://github.com/uor/angular-file
- https://github.com/twilson63/ngUpload
- https://github.com/uploadcare/angular-uploadcare
One of these should fit your project, or may give you some insight into how to code it yourself.