extractHtml method

Implementation

Future<String> extractHtml() async {
  if (_webViewController == null) {
    throw Exception('WebViewController not initialized.');
  }
  if (Platform.isWindows) {
    return await _webViewController.executeScript('document.documentElement.outerHTML');
  } else if (Platform.isMacOS) {
    return await _webViewController.evaluateJavascript('document.documentElement.outerHTML');
  }
  return '';
}