diff --git a/downloader/package.json b/downloader/package.json
index 708e031..459e66b 100644
--- a/downloader/package.json
+++ b/downloader/package.json
@@ -11,9 +11,10 @@
   "author": "",
   "license": "ISC",
   "dependencies": {
+    "common": "workspace:",
     "p-limit": "^5.0.0",
     "undici": "^5.28.0",
-    "common": "workspace:"
+    "zod": "^3.22.4"
   },
   "devDependencies": {
     "@tsconfig/node20": "^20.1.2",
diff --git a/frontend/package.json b/frontend/package.json
index bff30b7..3c4a603 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -28,6 +28,7 @@
     "vite": "^5.0.0"
   },
   "dependencies": {
+    "compression-streams-polyfill": "^0.1.6",
     "eva-icons": "^1.1.3",
     "navaid": "^1.2.0",
     "regexparam": "^3.0.0",
diff --git a/frontend/src/lib/fetch.ts b/frontend/src/lib/fetch.ts
index 3a622bc..ae2f5b0 100644
--- a/frontend/src/lib/fetch.ts
+++ b/frontend/src/lib/fetch.ts
@@ -25,7 +25,15 @@ async function fetchGzipped(url: string): Promise<Response> {
     res = await fetch(url.slice(0, url.length - ".gz".length));
     return res;
   }
-  const ds = new DecompressionStream("gzip");
+  let DecStream;
+  if ("DecompressionStream" in window) DecStream = window.DecompressionStream;
+  else {
+    const { makeDecompressionStream } = await import(
+      "compression-streams-polyfill/ponyfill"
+    );
+    DecStream = makeDecompressionStream(TransformStream);
+  }
+  const ds = new DecStream("gzip");
   const decompressedStream = res.body!.pipeThrough(ds);
   const resD = new Response(decompressedStream);
   return resD;
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 0197cb6..24afbc6 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -23,6 +23,9 @@ importers:
       undici:
         specifier: ^5.28.0
         version: 5.28.2
+      zod:
+        specifier: ^3.22.4
+        version: 3.22.4
     devDependencies:
       '@tsconfig/node20':
         specifier: ^20.1.2
@@ -33,6 +36,9 @@ importers:
 
   frontend:
     dependencies:
+      compression-streams-polyfill:
+        specifier: ^0.1.6
+        version: 0.1.6
       eva-icons:
         specifier: ^1.1.3
         version: 1.1.3
@@ -703,6 +709,12 @@ packages:
     engines: {node: '>= 10'}
     dev: true
 
+  /compression-streams-polyfill@0.1.6:
+    resolution: {integrity: sha512-vYXHeCzZPfKqz/ppInffY2HkevGbV6zm5wlSgtrW0+6neApbA5qZdG48KaDEhRmbIFhLgmVUlUc+szH9NrcaBA==}
+    dependencies:
+      fflate: 0.8.1
+    dev: false
+
   /concat-map@0.0.1:
     resolution: {integrity: sha512-/Srv4dswyQNBfohGpz9o6Yb3Gz3SrUDqBH5rTuhGR7ahtlbYKnVxw2bCFMRljaA7EXHaXZ8wsHdodFvbkhKmqg==}
     dev: true
@@ -888,6 +900,10 @@ packages:
       reusify: 1.0.4
     dev: true
 
+  /fflate@0.8.1:
+    resolution: {integrity: sha512-/exOvEuc+/iaUm105QIiOt4LpBdMTWsXxqR0HDF35vx3fmaKzw7354gTilCh5rkzEt8WYyG//ku3h3nRmd7CHQ==}
+    dev: false
+
   /fill-range@7.0.1:
     resolution: {integrity: sha512-qOo9F+dMUmC2Lcb4BbVvnKJxTPjCm+RRpe4gDuGrzkL7mEVl/djYSu2OdQ2Pa302N4oqkSg9ir6jaLWJ2USVpQ==}
     engines: {node: '>=8'}