foo.html

    <template is="dom-bind">
        <iron-ajax url="/total" last-response="{{A}}total{{B}}" handle-as="json" auto></iron-ajax>
        <paper-card heading="Grand Total" class="pink">
            <div class="card-content">
                [[total]] dead flies
            </div>
            <div class="card-actions">
                <form is="ajax-form" action="/kill" method="POST" id="anon-form">
                <paper-button id="submitButton2">I killed a fly (anonymously)</paper-button>
                </form>
            </div>
        </paper-card>
    </template>