onAnnotationClicked null issue

onAnnotationClicked null issue.WORD.yaml

name: onAnnotationClicked null issue
description: Creates a new snippet from a blank template.
host: WORD
api_set: {}
script:
  content: |
    $("#run").click(() => tryCatch(run));
    $("#insertAnnotations").click(() => tryCatch(insertAnnotations));

    async function run() {
      await Word.run(async (context) => {
        const callback = context.document.onAnnotationClicked.add(onAnnotationClicked);
        await context.sync();

        console.log("Added event handler for when content controls are added.");
      });

      async function onAnnotationClicked(event: Word.AnnotationClickedEventArgs) {
        await Word.run(async (context) => {
          console.log(event);
        });
      }
    }

    async function insertAnnotations() {
      await Word.run(async (context) => {
        const paragraph = context.document.getSelection().paragraphs.getFirst();
        const critique1 = {
          colorScheme: Word.CritiqueColorScheme.red,
          start: 1,
          length: 3
        };
        const critique2 = {
          colorScheme: Word.CritiqueColorScheme.green,
          start: 6,
          length: 1
        };
        const critique3 = {
          colorScheme: Word.CritiqueColorScheme.blue,
          start: 10,
          length: 3
        };
        const critique4 = {
          colorScheme: Word.CritiqueColorScheme.lavender,
          start: 14,
          length: 3
        };
        const critique5 = {
          colorScheme: Word.CritiqueColorScheme.berry,
          start: 18,
          length: 10
        };
        const annotationSet: Word.AnnotationSet = {
          critiques: [critique1, critique2, critique3, critique4, critique5]
        };

        const annotationIds = paragraph.insertAnnotations(annotationSet);

        await context.sync();
      });
    }

    /** Default helper for invoking an action and handling errors. */
    async function tryCatch(callback) {
      try {
        await callback();
      } catch (error) {
        // Note: In a production add-in, you'd want to notify the user through your add-in's UI.
        console.error(error);
      }
    }
  language: typescript
template:
  content: |-
    <button id="run" class="ms-Button">
        <span class="ms-Button-label">Run</span>
    </button>

    <button id="insertAnnotations" class="ms-Button">
        <span class="ms-Button-label">insertAnnotations</span>
    </button>
  language: html
style:
  content: |-
    section.samples {
        margin-top: 20px;
    }

    section.samples .ms-Button, section.setup .ms-Button {
        display: block;
        margin-bottom: 5px;
        margin-left: 20px;
        min-width: 80px;
    }
  language: css
libraries: |
  https://appsforoffice.microsoft.com/lib/1/hosted/office.js
  @types/office-js

  office-ui-fabric-js@1.4.0/dist/css/fabric.min.css
  office-ui-fabric-js@1.4.0/dist/css/fabric.components.min.css

  core-js@2.4.1/client/core.min.js
  @types/core-js

  jquery@3.1.1
  @types/jquery@3.3.1