ZeroNet still seeds a site when inner iframe was not loaded.

```html

function get(url) {
var r = new XMLHttpRequest();
r.onload = function() {
console.log(r.responseText);
};
r.open("GET", url);
r.send();
}

get("/13Lo9wpxbogHdaTQ9rGZruu9MJZnigzU3B/");
get("/1CiDoBP8RiWziqiBGEd8tQMy66A6fmnw2V/big/sample-loader/files/list.json");
console.log("Request sent.");

```

```
Request sent.
! Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at http://127.0.0.1:43110/13Lo9wpxbogHdaTQ9rGZruu9MJZnigzU3B/. (Reason: CORS header ‘Access-Control-Allow-Origin’ missing).
```

Site **still seeded** and appeared.

Start with the HTML/JavaScript XMLHttpRequest reproduction in the issue and trace how ZeroNet handles the failed inner request. Done means a site does not continue seeding or appear when the inner iframe or request was not loaded, with the provided reproduction no longer showing the reported behavior.

Do mô hình lập chỉ mục viết ra từ nội dung của issue.