Setting dynamic parameter in Flask's url_for() from JQuery's $.post()?

Question

I have some javascript that queries the server and returns a value that will be used as the parameter for the redirect url:

<script>
    $.post("/api/server", post_data, function(result) {
        var parameter = result['parameter'];

        // Do page redirect, but how do I pass my paramter to url_for()???
        window.location = "{{ url_for('doit', param=???) }}";
    });
</script>

The flask route:

@app.route("/doit/<param>")
def doit(param):
    print param
    return render_template("done.html")

Basically, when the $.post completes, it returns a value that I need as the parameter for the page redirect. How can I dynamically create this page redirect URL?

Answer 1

window.location.href = "{{ url_for('doit', param="+parameter+") }}";

Answer 2

I was being dumb. I can store results in my user's session and then access it later in the new request.