Support Redirect After Form Submission

[hay-kot]

Is your feature request related to a problem? Please describe.

Not really a problem as much as a limitation of the current behavior.

Describe the solution you'd like

When creating a form for listmonk I would like the ability to specify a redirect URL to send the user to instead of showing them the listmonk page. For example, Convert Kit allows a user to create a redirect link, or show a success message in their form builder.

I would love it if I could add a hidden input to manage a redirect to a custom page after submission.

<form method="post" action="..." class="listmonk-form">
          <div>
          <h3>Subscribe</h3>
          <input type="hidden" name="nonce" />
          
          <p><input type="email" name="email" required placeholder="E-mail" /></p>
          <p><input type="text" name="name" placeholder="Name (optional)" /></p>
      
        <p>
          <input id="60e8f" type="checkbox" name="l" checked value="60e8f519-972b-43b9-a92f-0ee72e32ff89" />
          <label for="60e8f">Launch List</label><br /><span>Launch List</span>
        </p>

        <!-- Redirect setting/definition --!>
        <input name="redirect_url" value="https://example.com/" type="hidden"/>
        
        <p><input type="submit" value="Subscribe" /></p>
    </div>
</form>

Then if redirect_url is found in the form fields, you'd be redirected to whatever value that is.