window:error page content

[GeorgianStan]

The content of this page seems to be different from the real results.

Event type
Is mentioned that the event type is UIEvent, however if we run this code we'll see in the console that the error is of type ErrorEvent.
In HTML spec is mentioned the same.

window.addEventListener("error", (event) => {
  console.log(event); // event is of type ErrorEvent
});

const badCode = "const s;";
eval(badCode);

Usage notes
In usage notes is mentioned:

Unlike other events, the error event is canceled by returning true from the handler instead of returning false. When canceled, the error won't appear in the console, but the current script will still stop executing.

However, this is not true, regardless of the return statement return true or return false the error message is displayed in the console.
Here it looks like is similar with unhandledrejection and event.preventDefault() must be used so that the message is not printed to the console.

[schalkneethling]

Hey @GeorgianStan, thank you for starting the thread. From your description, I believe this might be a valid issue to open on the content repo.

[GeorgianStan]

issue link