Added setState documentation

README.md

@@ -23,6 +23,7 @@ A form input builder and validator for React JS
  - [onInvalid()](#oninvalid)
  - [Formsy.Mixin](#formsymixin)
  - [name](#name)
+ - [value](#value)
  - [validations](#validations)
  - [validationError](#validationerror)
  - [required](#required)
@@ -246,6 +247,12 @@ Whenever the form becomes invalid the "onInvalid" handler is called. Use it to f
 ```
 The name is required to register the form input component in the form.
 
+#### <a name="value">value</a>
+```html
+<MyInputComponent name="email" value="My default value"/>
+```
+You should always use the **getValue()** method inside your formsy form element. To pass a default value, use the value attribute.
+
 #### <a name="validations">validations</a>
 ```html
 <MyInputComponent name="email" validations="isEmail"/>

src/main.js

@@ -64,10 +64,15 @@ var request = function (method, url, data, contentType, headers) {
  xhr.onreadystatechange = function () {
  if (xhr.readyState === 4) {
 
- if (xhr.status >= 200 && xhr.status < 300) {
- resolve(xhr.responseText ? JSON.parse(xhr.responseText) : null);
- } else {
- reject(xhr.responseText ? JSON.parse(xhr.responseText) : null);
+ try {
+ var response = xhr.responseText ? JSON.parse(xhr.responseText) : null;
+ if (xhr.status >= 200 && xhr.status < 300) {
+ resolve(response);
+ } else {
+ reject(response);
+ }
+ } catch (e) {
+ reject(e);
  }
 
  }
@@ -221,7 +226,7 @@ Formsy.Form = React.createClass({
 
  this.props.onSubmit();
 
- var headers = (Object.keys(this.props.headers).length && this.props.headers) || options.headers;
+ var headers = (Object.keys(this.props.headers).length && this.props.headers) || options.headers || {};
 
  ajax[this.props.method || 'post'](this.props.url, this.model, this.props.contentType || options.contentType || 'json', headers)
  .then(function (response) {