HTML5 FormData

Emulate FormData object for browsers wich support FileAPI interface.

formdata.js doesn't overload original FormData object in browser like Safari 5.0+, Firefox 4.0+ or Chrome 6.0+.

About FormData

FormData objects provide a way to easily construct a set of key/value pairs representing form fields and their values, which can then be easily sent using the XMLHttpRequest send() method.

developer.mozilla.org/en/XMLHttpRequest/FormData

How to use it ?

Include formdata.js:

<script type="text/javascript" src="formdata.js"></script>

And use xmlhttprequest with some bad adjustments.

var data = new FormData();
data.append('file', document.getElementById('file').files[0]);

xhr.open('POST', '/', true);
xhr.setRequestHeader("Cache-Control", "no-cache");
xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest");
// this is really bad
if (data.fake) {
   xhr.setRequestHeader("Content-Type", "multipart/form-data; boundary="+ data.boundary);
   xhr.sendAsBinary(data.toString());
} else {
   xhr.send(data);
}

With jquery.form.js

jquery.form.js have been patched and can use fake FormData. See github.com/AF83/form.

Tests

Point your favorite web browser in tests.html.

License

MIT License

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.