title: Passing Data to modal / WebView
body: <p>In NativeScript-Vue, what's the simple, clean way to pass data to a modal?</p>
  
  <p>Background:
  I need to display external web pages in a modal. WebView seems the thing. Except that the <a href="https://nativescript-vue.org/en/docs/elements/components/web-view/" rel="nofollow noreferrer">docs</a> indicate that you must hard code the source:</p>
  
  <p><code>&lt;WebView src="http://nativescript-vue.org/" /&gt;</code> </p>
  
  <p>That's no good. I need something like </p>
  
  <pre><code>&lt;WebView :src="myUrl" /&gt;
  
  data() {
      return {
           myUrl: "https://en.wikipedia.org/wiki/Mary,_Queen_of_Scots",
  }
  </code></pre>
  
  <p>Despite what the documentation says, this seems to work. Yay!!</p>
  
  <p>Now, in the modal, how do I set <code>myUrl</code> to a value from the original app page?</p>