```html
```
```js
(async function () {
const embedResponse = document.getElementById("response");
try {
// clean content first
embedResponse.setAttribute("src", "data:text/html;charset=utf-8,");
const response = await fetch("/api/response", {
method: "post",
// accept HTML response
headers: {
Accept: "application/json, text/plain, */*",
"Content-Type": "application/json",
},
// sent data if needed
body: JSON.stringify({ data: "" }),
});
// encode HTML response
const html = await response.text();
embedResponse.setAttribute(
"src",
"data:text/html;charset=utf-8," + encodeURIComponent(html),
);
} catch (e) {
// catch errors and show them
embedResponse.setAttribute(
"src",
"data:text/html;charset=utf-8," + encodeURIComponent(e),
);
console.error(e);
}
})();
```
There is another option, you can display HTML in new window as blob data:
```js
const content = URL.createObjectURL(
new Blob([response.data + overlay || ""], { type: "text/html" }),
);
window.open(content, "response", `width=640, height=480`).focus();
```