Got wasm working.

nshen/vite-plugin-wasm-pack#20 was the cause
of prior confusion.

package.json

@@ -18,10 +18,12 @@
     "prettier": "^2.8.1",
     "prettier-plugin-svelte": "^2.9.0",
     "svelte": "^3.54.0",
-    "vite": "^4.0.0"
+    "vite": "^4.0.3",
+    "vite-plugin-wasm-pack": "0.1.11"
   },
   "dependencies": {
     "material-icons": "^1.13.1",
+    "osm2streets-js": "^0.1.1",
     "svelte-material-ui": "^7.0.0-beta.0"
   }
 }

src/App.svelte

@@ -8,10 +8,16 @@
   import TabBar from "@smui/tab-bar";
   import Button from "@smui/button";
 
+  import init, { JsStreetNetwork } from "osm2streets-js";
+
   let panel1 = false;
   let panel2 = false;
 
   let activeTab = "Residential";
+
+  init().then(() => {
+    console.log(`It worked!?`);
+  });
 </script>
 
 <h1>Playground</h1>

vite.config.js

@@ -1,8 +1,9 @@
 import { defineConfig } from 'vite'
 import { svelte } from '@sveltejs/vite-plugin-svelte'
+import wasmPack from 'vite-plugin-wasm-pack';
 
 // https://vitejs.dev/config/
 export default defineConfig({
-  plugins: [svelte()],
+  plugins: [svelte(), wasmPack([], ['osm2streets-js'])],
   base: "/svelte_playground/"
 })