title: Get event click on backdrop using modal Bootstrap-vue
body: <p>Im using Vue2 and Boostrap-vue to make an modal component here's the code </p>
  
  <p>I passed the following props <code>@backdrop="handleBackdrop"</code></p>
  
  <pre><code>&lt;template&gt;
  &lt;b-modal
      v-model="showModal"
      id="modal"
      @backdrop="handleBackdrop"
      @ok="handleBackdrop"
    &gt;
  ...
  &lt;/template&gt;
  
  &lt;script&gt;
  data() {
      return {
        showModal: false
       }
  },
    methods: {
      show() {
        this.showModal = true;
      },
      hide() {
        this.showModal = false;
      },
      handleBackdrop(ev) {
        ev.preventDefault();
        console.log("Click backdrop");
      }
  }
  &lt;/script&gt;
  </code></pre>
  
  <p>i'm using this @ok to test the function handleBackdrop and it works but i cannot active this click on backdrop</p>