Calling a special (non-HTTP) URL from the form_val

There's this HTML trick where if you do <a href="sms:14085551212?body=Hello my friend">New SMS Message</a>, clicking New SMS Message opens up the phone's native SMS app and pre-fills the To field with the number provided (1-408-555-1212 in this case), and the body with the message provided (Hello my friend in this case).

Is there any way I can call this same href string from the form_valid method of a Django class-based view? To be exact, in this form_valid method I'm receiving a POST variable that is a uuid. I need to use that uuid in the body section of the href string I've written in the example above.

Note: I tried the approach followed in this answer: Django 1.4 - Redirect to Non-HTTP urls It doesn't solve my problem - I actually don't redirect anywhere, nor do I get an error. The URL in the browser doesn't change either.

My code is:

class UserPhoneNumberView(FormView):
    form_class = UserPhoneNumberForm
    template_name = "get_user_phonenumber.html"

    def form_valid(self, form):
        phonenumber = self.request.POST.get("mobile_number")
        unique = self.request.POST.get("unique")
        url = "http://example.com/"+unique
        response = HttpResponse("", status=302)
        body = "See this url: "+url
        nonhttp_url = "sms:"+phonenumber+"?body="+body
        response['Location'] = str(nonhttp_url)
        return response

I think you should try @Selcuk's suggestion: returning a template from the FormView with HTML code similar to:

<html>
  <head>
    <meta http-equiv="refresh" content="0;URL={{ url }}" />
  </head>
  <body>
    <!-- The user will see this when they come back to the browser, 
         and if the SMS app does not open right away -->
    Waiting message 
  </body>
</html>

So your django view would become:

from urllib import quote
from django.shortcuts import render

class UserPhoneNumberView(FormView):
    form_class = UserPhoneNumberForm
    template_name = "get_user_phonenumber.html"

    def form_valid(self, form):
        phonenumber = self.request.POST.get("mobile_number")
        unique = self.request.POST.get("unique")
        url = "http://example.com/"+unique
        body = quote("See this url: "+url)
        nonhttp_url = "sms:"+phonenumber+"?body="+body
        context = {'url': nonhttp_url}
        return render(request, 'theTemplate.html', context)

I just tried on my phone, and I got redirected to my SMS app.