@darkcurv it’s hard to be 100% sure without seeing the entirety of the embed code - but from the bit I can see I’d be inclined to agree.
However, you should be able to workaround this fairly easily just by setting up an HTML page of your own then dropping the snippet they’ve provided into it.
The basic HTML you’d need would be like this:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document title</title>
</head>
<body>
<!-- replace this line with the Indy embed code snippet -->
</body>
</html>