From 2d2eb62fa0a0d8ed7605c395d67cc616a5efbe92 Mon Sep 17 00:00:00 2001
From: zakorgyula <gyula.zakor@gmail.com>
Date: Tue, 26 Jul 2016 14:29:23 +0200
Subject: [PATCH] WebBluetooth Specification Change

---
 components/script/dom/bluetoothremotegattcharacteristic.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/components/script/dom/bluetoothremotegattcharacteristic.rs b/components/script/dom/bluetoothremotegattcharacteristic.rs
index e3e17b4a0f9..8c520d7d4ca 100644
--- a/components/script/dom/bluetoothremotegattcharacteristic.rs
+++ b/components/script/dom/bluetoothremotegattcharacteristic.rs
@@ -195,6 +195,12 @@ impl BluetoothRemoteGATTCharacteristicMethods for BluetoothRemoteGATTCharacteris
         if !self.Service().Device().Gatt().Connected() {
             return Err(Network)
         }
+
+        if !(self.Properties().Write() ||
+             self.Properties().WriteWithoutResponse() ||
+             self.Properties().AuthenticatedSignedWrites()) {
+            return Err(NotSupported)
+        }
         let (sender, receiver) = ipc::channel().unwrap();
         self.get_bluetooth_thread().send(
             BluetoothMethodMsg::WriteValue(self.get_instance_id(), value, sender)).unwrap();