Url Exists

index.html

main.dart

import 'dart:html';

main(){
  urlExists('https://developer.mozilla.org/en-US/docs/Web/API/HTMLTextAreaElement/autofocus');
  urlExists("https://developer.mozilla.org/en-US/docs/Web/API/HTMLTextAreaElement");
}

urlExists(String url) async {
   try {
    await HttpRequest.getString(url);
    print(true);
  } catch(error) {
    print(false);
  }  // examine response for errors
}

style.css

p{
  
}