diff --git a/static/js/BLE.js b/static/js/BLE.js
index 2f580e2..e5f7a32 100644
--- a/static/js/BLE.js
+++ b/static/js/BLE.js
@@ -115,5 +115,7 @@ function revsToRPM(prevRes, res) {
btn.addEventListener("click", () =>
connect({
onChange: parseCSC,
- }).catch(console.error)
+ }).catch((err) => {
+ swal("Oops", err, "error");
+ })
);
diff --git a/templates/base.html b/templates/base.html
index 0fb3d1b..269ccbb 100644
--- a/templates/base.html
+++ b/templates/base.html
@@ -9,6 +9,7 @@
+