**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

if (style1 == null || style2 == null) {
    return;
  }
  if (shallowEqual(style1, style2)) {
    return;
  }
  var componentName = component._tag;
  var owner = component._currentElement._owner;
  var ownerName;
  if (owner) {
    ownerName = owner.getName();
  }
  var hash = ownerName + '|' + componentName;
  if (styleMutationWarning.hasOwnProperty(hash)) {
    return;
  }
  styleMutationWarning[hash] = true;
  warning(
    false,
    '`%s` was passed a style object that has previously been mutated. ' +
    'Mutating `style` is deprecated. Consider cloning it beforehand. Check ' +
    'the `render` %s. Previous style: %s. Mutated style: %s.',
    componentName,
    owner ? 'of `' + ownerName + '`' : 'using <' + componentName + '>',
    friendlyStringify(style1),
    friendlyStringify(style2)