code: function displayResponse(response){
    
    // Gather and display HTTP response data
    var lines = [
      response.statusCode + ' ' + response.statusText,
      headersToString(response.headers)
    ];
    if(response.data){
      lines.push('');
      lines.push(prettyPrint(response.data));
    }
    output(lines.join('\n'));
    
    // Attach listeners to links so that clicking a link will auto-populate
    // the url field
    Array.from($output.querySelectorAll('.link')).forEach(function(link){
      link.addEventListener('click', function(){
        // Remove leading and trailing "
        $url.value = link.innerHTML.slice(1,-1);
        window.scrollTo(0, 0);
      });
    });
  }
docs: Display an API response
  
  @param {Object} response