Polymer 1.0 paper-drawer-panel toggle is not working
问题 'my-layout' code : <link rel="import" href="../bower_components/iron-icons/iron-icons.html" > <link rel="import" href="../bower_components/paper-icon-button/paper-icon-button.html" > <link rel="import" href="../bower_components/paper-drawer-panel/paper-drawer-panel.html" > <link rel="import" href="../bower_components/paper-header-panel/paper-header-panel.html" > <link rel="import" href="../bower_components/paper-toolbar/paper-toolbar.html" > <polymer-element name="m-layout" > <template>