Page Attachment block

assets/src/stories-editor/components/post-selector/index.js

@@ -10,7 +10,7 @@ import scrollIntoView from 'dom-scroll-into-view';
  */
 import { __, sprintf, _n } from '@wordpress/i18n';
 import { Component, createRef } from '@wordpress/element';
-import { UP, DOWN, ENTER, TAB } from '@wordpress/keycodes';
+import { UP, DOWN, ENTER, TAB, ESCAPE } from '@wordpress/keycodes';
 import { Spinner, withSpokenMessages, Popover } from '@wordpress/components';
 import { withInstanceId, withSafeTimeout, compose } from '@wordpress/compose';
 import apiFetch from '@wordpress/api-fetch';
@@ -219,6 +219,16 @@ class PostSelector extends Component {
 				}
 				break;
 			}
+			case ESCAPE: {
+				event.stopPropagation();
+				event.preventDefault();
+				this.setState( {
+					showSuggestions: false,
+					selectedSuggestion: null,
+					loading: false,
+				} );
+				break;
+			}
 			default:
 				break;
 		}