Basic 3D Model Not Showing Up At All On Simple Webpage

Hello, I’m having some trouble with Model-Viewer in I have an index.html, script.js, style.css file, with an assets folder. My index.html code is below:

<!DOCTYPE html>
<html lang="en">
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">

    <link rel="stylesheet" href="style.css">
    <script type="module" src=""></script>
      model-viewer {
        width: 400px;
        height: 600px;
        margin: 0 auto;

    <model-viewer src=""></model-viewer>

The src for the model comes from my assets folder, where I uploaded, and tried, both the original and updated versions of the glTF file from this Poly.Google page:

When I open my page, I can tell there is a model viewer window (by the loading bar) at the width, height, and margin I specified, but the model does not show up. Any suggestions would be appreciated :smiley:

Did you check devtools and the Network panel for any errors?