From c80f984924ba3c146cbaa0425ed2cc79dae8fb71 Mon Sep 17 00:00:00 2001
From: Francois Beaufort <beaufort.francois@gmail.com>
Date: Tue, 11 Apr 2017 16:44:09 +0200
Subject: [PATCH] Update griffin powermate demo

---
 webusb/griffin-powermate.html | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/webusb/griffin-powermate.html b/webusb/griffin-powermate.html
index ad0b229..1134822 100644
--- a/webusb/griffin-powermate.html
+++ b/webusb/griffin-powermate.html
@@ -10,6 +10,8 @@
   <script>
     var device;
 
+    log.textContent = ('usb' in navigator) ? '' : 'Please enable WebUSB first.';
+
     document.querySelector('button').addEventListener('click', connect);
 
     async function connect() {
@@ -21,7 +23,7 @@
         log.textContent = device.productName + ' connected';
         await watch();
       } catch(e) {
-        console.log(e);
+        log.textContent = 'Argh! ' + e;
       }
     }
 
@@ -34,7 +36,7 @@
 
         watch();
       } catch(e) {
-        console.log(e);
+        log.textContent = 'Argh! ' + e;
       }
     }