index: disable acrcard conditionally

This is fairly weird - it looks the same as on all the other versions,
but seems to fail on 3.x. Since facebooklogin is working here perfectly
fine already, we can just drop that entrypoint there.

index.html

@@ -186,7 +186,8 @@
                     params: { server: url.replace('http://', '').replace('https://', '') + "#" },
                   },
                   "com.webos.app.acrcard": {
-                    priority: 2000,
+                    // acrcard is broken on 3.x? worth debugging.
+                    priority: (navigator.userAgent.indexOf("Chrome/38.0") !== -1) ? -1000 : 2000,
                     params: { contentTarget: url },
                   },
                   "com.webos.app.alibaba": {