wasm-bindgen/examples/no_modules/index.html

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<html>
<head>
<meta content="text/html;charset=utf-8" http-equiv="Content-Type"/>
</head>
<body>
<script>
// The `--no-modules`-generated JS from `wasm-bindgen` attempts to use
// `WebAssembly.instantiateStreaming` to instantiate the wasm module,
// but this doesn't work with `file://` urls. This example is frequently
// viewed by simply opening `index.html` in a browser (with a `file://`
// url), so it would fail if we were to call this function!
//
// Work around this for now by deleting the function to ensure that the
// `no_modules.js` script doesn't have access to it. You won't need this
// hack when deploying over HTTP.
delete WebAssembly.instantiateStreaming;
</script>
<!-- this is the JS generated by the `wasm-bindgen` CLI tool -->
<script src='./no_modules.js'></script>
<script>
window.addEventListener('load', async () => {
// the `wasm_bindgen` global is set to the exports of the Rust module
//
// here we tell bindgen the path to the wasm file so it can run
// initialization and return to us a promise when it's done
// also, we can use 'await' on the returned promise
await wasm_bindgen('./no_modules_bg.wasm');
});
</script>
</body>
</html>