Zoho Writer Request

Zoho Writer Request

I tried adding the HTML code 

  1. <form method="POST" action="https://writer.zoho.com/writer/remotedoc.im" target="_self" accept-charset="UTF-8">
            <input type="hidden" name="apikey" value="85e46eff1653ccde634a2722db026ab5">
            <input type="hidden" name="output" value="url">
            <input type="hidden" name="mode" value="normaledit">
            <input type="hidden" name="filename" value="logo-che">
            <input type="hidden" name="lang" value="en">
            <input type="hidden" name="format" value="docx">
            <input type="hidden" name="saveurl" value="">
            <input type="submit" name="submit" value="Open">
        </form>

Then after clicking the submit button i was being redirected to  https://writer.zoho.com/writer/remotedoc.im and showing this one . 

How will i get the URL value to my web application?