ComboBox - Remote Data Source

Flow
1

Hello!

I’m trying produce example from documentation, but I cannot do that (Service is not called)
I’m new in Vaadin 10.
What is wrong here?

<dom-module id="remote-combo-box">
    <dom-bind>
        <template>
            <iron-ajax url="https://api.stackexchange.com/2.2/search/advanced?body=vaadin-combo-box&amp;tagged=vaadin&amp;title=[[filter]
]&amp;site=stackoverflow" last-response="{{response}}" auto></iron-ajax>

            <vaadin-combo-box filtered-items="[[response.items]
]" filter="{{filter}}" item-value-path="question_id" item-label-path="title">
            </vaadin-combo-box>
        </template>
    </dom-bind>

    <!-- Polymer boilerplate to register the reviews-list element -->
    <script>
        class MyElement extends Polymer.Element {
            static get is() {
                return 'remote-combo-box'
            }
        }
        customElements.define(MyElement.is, MyElement);
    </script>
</dom-module>

@Tag("remote-combo-box")
@HtmlImport("frontend://src/combobox/remote-combo-box.html")
public class RemoteComboBox extends PolymerTemplate<RemoteComboBox.MyElement> {
    public interface MyElement extends TemplateModel {
    }
    public RemoteComboBox() {
    }
}

Thanks for any help!

2

Not 100% (cause I’m not sure if the forum does something funny with the formatting), but you should probably replace those &amp; strings with just & so that the HTTP request goes to the correct location.