fix: proxy requests to olm.wasm through the web worker to avoid the n…

…eed for server rewrite rules.

src/sw.ts

@@ -37,6 +37,16 @@ const matrixShim = MatrixShim.init();
 
 self.addEventListener('fetch', async (event: FetchEvent) => {
   const url = new URL(event.request.url);
+
+  // TODO(@zicklag): This is a weird thing we are doing to replace the need
+  // for the nginx / fastly / etc. rewrite rules that were previously being used.
+  // I'm not sure why this WASM binary is always resolved with a relative path,
+  // but it would be good to fix that so that we don't need this anymore.
+  if (url.pathname.endsWith('olm.wasm')) {
+    event.respondWith(fetch('/olm.wasm')) 
+    return
+  }
+
   if (url.pathname.startsWith('/_matrix')) {
     const shim = await matrixShim;
     event.respondWith(shim.handleRequest(event.request));

vite.config.js

@@ -50,12 +50,13 @@ export default defineConfig({
   server: {
     port: 8080,
     host: true,
-    proxy: {
-      '^\\/.*?\\/olm\\.wasm$': {
-        target: 'http://localhost:8080',
-        rewrite: () => '/olm.wasm',
-      },
-    },
+    // Not needed after working the rewrite into the web worker.
+    // proxy: {
+    //   '^\\/.*?\\/olm\\.wasm$': {
+    //     target: 'http://localhost:8080',
+    //     rewrite: () => '/olm.wasm',
+    //   },
+    // },
   },
   plugins: [
     topLevelAwait({