# Redirection

After submitting a form, the user will be redirected to a generic [feedback page](https://documentation.formspark.io/customization/feedback-page.md) hosted by Formspark.

This default behavior can be overridden in multiple ways.

## Specifying a custom redirect URL

1. Add an input of type `hidden`.
2. Set the input's name to `_redirect`.
3. Set the value to the URL you want to redirect users to.

```html
<form action="https://submit-form.com/your-form-id" method="POST">
  <input
    type="hidden"
    name="_redirect"
    value="https://your-website.com/thanks"
  />
  <input type="email" name="email" />
  <button type="submit">Subscribe</button>
</form>
```

The value can also be a path, such as `/thanks`. Formspark resolves it against the page the form was submitted from, the way a link on that page would. Only `http` and `https` addresses are followed; anything else sends the visitor to the default feedback page.

By default, Formspark appends the submission's entries to the custom redirect URL (to its search string).
This enables you to personalize your page with user-submitted data.

The above form's submissions would redirect to `https://your-website.com/thanks?email=example%40email.com`.

You can toggle off this behavior by adding a hidden input with the name `_append` and the value `false`.

```html
<input type="hidden" name="_append" value="false" />
```

## Specifying a custom error redirect URL

Note: If you don't specify a custom error redirect URL then the configuration from `_redirect` (if present) will
automatically be inherited.

1. Add an input of type `hidden`.
2. Set the input's name to `_error`.
3. Set the value to the URL you want to redirect users to.

```html
<form action="https://submit-form.com/your-form-id" method="POST">
  <input type="hidden" name="_error" value="https://your-website.com/error" />
  <input type="email" name="email" />
  <button type="submit">Subscribe</button>
</form>
```

::: tip
`_redirect` is only used for full-page form submissions. When you submit via AJAX with `Accept: application/json`, Formspark returns a JSON response instead and `_redirect` is silently ignored. Handle the post-submission UX yourself in JavaScript.
:::

## Preventing the redirect

### Staying on the same page (without leaving it)

This is only possible with JavaScript/AJAX.

Formspark has excellent AJAX support, [learn more about it here](https://documentation.formspark.io/examples/ajax.md).

### Returning to the same page (after leaving it)

```html
<!--
1. If your form is hosted at "https://my-website.com/newsletter.html"
-->
<form action="https://submit-form.com/your-form-id" method="POST">
  <!-- 2. Then you would set the "_redirect" to "https://my-website.com/newsletter.html" -->
  <input
    type="hidden"
    name="_redirect"
    value="https://my-website.com/newsletter.html"
  />
  <input type="email" name="email" />
  <button type="submit">Subscribe</button>
</form>
```

This method is based on illusion. Technically, you are not preventing the redirection.