I have a website made with sveltekit and I want to add a flappy bird made with godot 4, when I export the game and upload it to itch.io the game runs and runs fine, but when I use an iframe to run my game on my website, I get this message:

Error
The following features required to run Godot projects on the Web are missing:
Cross Origin Isolation – Check web server configuration (send correct headers)
SharedArrayBuffer – Check web server configuration (send correct headers)

I asked ChatGPT and he told me to put these headers in my vite.config.ts:

server: {
    headers: {
      'Cross-Origin-Opener-Policy': 'same-origin',
      'Cross-Origin-Embedder-Policy': 'require-corp'
    }
  }

But I still have the same problem, I also tried to run my game locally on my website and it’s still the same so I tried to run it from an itch.io iframe again, this is the code I’m using to run it:

<script>
    export let src = 'https://html.itch.zone/html/11009302/index.html';
    export let width = "800";
    export let height = "600";
  </script>
  
  <iframe
    src={src}
    width={width}
    height={height}
    class="border-none"
    style="border: none; display: block; margin: auto;"
    title=""
  ></iframe>
  
  <style>
    iframe {
      display: block;
      margin: auto;
    }
  </style>
  

I want my game that I published on itch.io to run on my website with iframe as well, but I get this error:
Error
The following features required to run Godot projects on the Web are missing:
Cross Origin Isolation – Check web server configuration (send correct headers)
SharedArrayBuffer – Check web server configuration (send correct headers)
If it can’t be done from itch.io and the game has to be local from my website, nothing happens, but I also tried that and I get the same error.