**Do you want to request a _feature_ or report a _bug_?**

This is a bug report.

**What is the current behavior?**

In Safari, the type of input field is not updated properly. Consider the example linked below. It is a React component that display a button and an input field. The type of input field will be toggled between file or text by clicking the button. The change of input type is not being reflected.

I believe this is an issue with Safari. Setting the `type` property in Safari does not affect what is being rendered:

``` javascript
var a = document.createElement("input");
a.type = "text";
document.body.appendChild(a); // A text input is shown
a.type = "file"; // The input remains a text input in Safari.
```

**If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem via https://jsfiddle.net or similar (template: https://jsfiddle.net/reactjs/69z2wepo/).**

https://jsfiddle.net/x1xtbjt0/2/

**What is the expected behavior?**

The input type should be changed, as in Chrome and Firefox.

**Which versions of React, and which browser / OS are affected by this issue? Did this work in previous versions of React?**

React: 15.1.0
ReactDOM: 15.1.0
Browser: Safari 9.1.1, Chrome 51.0.2704.103, Firefox 47.0
OS: OS X 10.11.5

var stub = <input type="text" value="yolo" onChange={emptyFunction} />;
    var node = ReactDOM.render(stub, container);
    expect(node.value).toBe('yolo');
    stub = ReactDOM.render(
      <input type="text" value={false} onChange={emptyFunction} />,
      container
    );
    expect(node.value).toEqual('false');
  });
  it('should allow setting `value` to `objToString`', function() {
    var container = document.createElement('div');
    var stub = <input type="text" value="foo" onChange={emptyFunction} />;
    var node = ReactDOM.render(stub, container);
    expect(node.value).toBe('foo');
    var objToString = {
      toString: function() {
        return 'foobar';
      },
    };
    stub = ReactDOM.render(
      <input type="text" value={objToString} onChange={emptyFunction} />,
      container
    );
    expect(node.value).toEqual('foobar');
  });
  it('should not incur unnecessary DOM mutations', function() {
    var container = document.createElement('div');
    ReactDOM.render(<input value="a" />, container);
    var node = container.firstChild;
    var nodeValue = 'a';