Add success error catching redirect

src/main.rs

@@ -99,6 +99,7 @@ async fn post_login(login: Form<Login<'_>>, cookies: &CookieJar<'_>) -> Redirect
 fn success() -> RawHtml<&'static str> {
     RawHtml("<form action=\"/login\" method=\"post\"></form>
 <script>
+    try {
         const params = new URLSearchParams(location.hash.slice(1));
         const form = document.querySelector(\"form\");
         [\"token_type\", \"access_token\", \"expires_in\", \"scope\"].forEach(field => {
@@ -109,6 +110,9 @@ fn success() -> RawHtml<&'static str> {
             form.appendChild(input);
         });
         form.submit();
+    } catch {
+        location.href = \"/\";
+    }
 </script>")
 }