app_layout/ProgressEvent-class.html">ProgressEvent</a></span> <span class="parameter-name">e</span></span>)</span>})
                    &#8594;
                    <span class="returntype">Future&lt;<a href="dart-html/HttpRequest-class.html">HttpRequest</a>&gt;</span>
                </span>
            </dt>
            <dd>
                Makes a server POST request with the specified data encoded as form data.
            </dd>
            <dt id="request" class="callable">
                <a href="pol