OnClick: Compartilhe Imagem no Facebook Angular 9

<!DOCTYPE html>
<html>
  
<head>
    <style type="text/css" media="all">
        /* This CSS is optional */
        #share-button {
            padding: 10px;
            font-size: 24px;
        }
    </style>
</head> 
  
<body>
    <!-- The share button -->    
    <button id="share-button">Share</button>
      
    <!-- These line breaks are optional -->
    <br/>
    <br/>
    <br/>
  
    <!-- The anchor tag for the sharing link -->
    <a href="#"></a>
    <script type="text/javascript" charset="utf-8">
        // Make sure you write this code inside the 
        // script tag of your HTML file 
  
        // Storing the URL of the current webpage
        const URL = window.location.href.slice(7);
        // We used the slice method to remove 
        // the 'http://' from the prefix 
  
        // Displaying the current webpage link
        // on the browser window 
        const link = document.querySelector('a');
        link.textContent = URL;
        link.href = URL;
  
        // Displaying in the console
        console.log(URL);
    </script>    
</body>
    
</html>
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