Bug: V8.1.0 Can't extends Application or Container

[AG2023]

Current Behavior

I tried to extends PIXI.Application to create a game's main class, but when I run the code, browser threw an error :Uncaught (in promise) TypeError: Class constructor _Application cannot be invoked without 'new'.

The code of main class:

export class Game extends PIXI.Application {
  constructor(options) {
    super(options)
  }
}

The code to create game instance:

window.onload = async function () {
  const dom = document.getElementById('my_game');

  const options = {width: 1280, height: 720, backgroundColor: 0x111111, sharedTicker: true, transparent: false};
  const game = new Game();
  await game.init(options);
  dom .appendChild(game.canvas);
};

I do samething in pixi.js v6.5.4, it works OK，but in v8.1.0, it threw an error.

Try for Container, similar error occurs: Uncaught (in promise) TypeError: Class constructor Container cannot be invoked without 'new'.

The JS code is ES6, and is compiled into ES5.

Expected Behavior

All class could be extended.

Steps to Reproduce

Please run the code.

Environment

• pixi.js version: v8.1.0
• Browser & Version: Chrome 123.0.6312.124
• OS & Version: Windows 11
• Running Example: **

Possible Solution

No response

Additional Information

No response

[ShukantPal]

Please provide a reproduction - I can extend Application without this type of issue.

[bigtimebuddy]

Compiling to ES5 could present issues. Need more specifics about what's going on, and yes a reproduction.

[AG2023]

Here is a test URL: https://agtesta.blob.core.windows.net/rmg/dev/pixi_8/qa_24.05.07.12/index.html

This time, the error is: Uncaught TypeError: Super expression must either be null or a function.

[bigtimebuddy]

Do you have a link to the repository?

[AG2023]

I simplified the project，here is the source code：
https://agtesta.blob.core.windows.net/rmg/temp/Pixi81.rar

Please follow the steps to test the code in IDEA: