diff --git a/wasm/demo_app/vite.demo.config.ts b/wasm/demo_app/vite.demo.config.ts
index b84e280f..a5a0217a 100644
--- a/wasm/demo_app/vite.demo.config.ts
+++ b/wasm/demo_app/vite.demo.config.ts
@@ -23,5 +23,9 @@ export default defineConfig({
   },
   server: {
     open: true,
+    headers: {
+      "Cross-Origin-Opener-Policy": "same-origin",
+      "Cross-Origin-Embedder-Policy": "require-corp",
+    },
   },
 })
diff --git a/wasm/tests/sandbox/vite.sandbox.config.ts b/wasm/tests/sandbox/vite.sandbox.config.ts
index 123f412b..01312ba1 100644
--- a/wasm/tests/sandbox/vite.sandbox.config.ts
+++ b/wasm/tests/sandbox/vite.sandbox.config.ts
@@ -23,5 +23,9 @@ export default defineConfig({
   },
   server: {
     open: true,
+    headers: {
+      "Cross-Origin-Opener-Policy": "same-origin",
+      "Cross-Origin-Embedder-Policy": "require-corp",
+    },
   },
 })