diff --git a/app/src/index.tsx b/app/src/index.tsx
index e47e8ff..815f69d 100644
--- a/app/src/index.tsx
+++ b/app/src/index.tsx
@@ -2,7 +2,7 @@
 import { render } from "solid-js/web";
 import { Show } from "solid-js";
 import { Route, Router } from "@solidjs/router";
-import Index from "./routes/index";
+import Index from "./routes/index.tsx";
 
 import "./index.css";
 import { AppContextProvider } from "./components/AppContext";
diff --git a/app/src/routes/join.tsx b/app/src/routes/join.tsx
index 476bb8d..3a8abdd 100644
--- a/app/src/routes/join.tsx
+++ b/app/src/routes/join.tsx
@@ -67,6 +67,7 @@ export default function Join() {
   return (
     <>
       <h1>Invitation</h1>
+      <a href="/">Back</a>
 
       <Switch>
         <Match when={keyPackage.loading}>
diff --git a/core/src/v2/serializable.rs b/core/src/v2/serializable.rs
index 0ecf631..a007b4f 100644
--- a/core/src/v2/serializable.rs
+++ b/core/src/v2/serializable.rs
@@ -129,6 +129,7 @@ impl Client {
     }
 
     pub fn from_serialized(bytes: &[u8]) -> Result<Self, JsError> {
+        console_error_panic_hook::set_once();
         Ok(postcard::from_bytes(bytes)?)
     }