submitting x-www-form-urlencoded

I'm working on submitting a form that redirects the user to a new page.

this is a simplified version of the form:

<form method="post" id="form1"action="http://ift.tt/186sGz3">
    <input type="hidden" name="name1" value="value1">
    <input type="hidden" name="name2" value="value2">
    <input type="submit">
</form>

In the past I've been able to submit forms through url, like:

http://ift.tt/1MZu1IK

But this won't work now.

I'm struggling, and I think it is due to being x-www-form-urlencoded. I'm unfamiliar with this, and could use some guidance. Thanks!