From 4e44d068644a72238ab5d629aae913ac4bcefe67 Mon Sep 17 00:00:00 2001
From: Gregg Tavares <github@greggman.com>
Date: Mon, 25 Dec 2017 18:50:09 +0900
Subject: [PATCH] prevent zoom on double tap

---
 src/hft/scripts/misc/touch.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/hft/scripts/misc/touch.js b/src/hft/scripts/misc/touch.js
index 3bb3e18..35a093b 100644
--- a/src/hft/scripts/misc/touch.js
+++ b/src/hft/scripts/misc/touch.js
@@ -290,6 +290,7 @@ define(
     };
 
     var onPointerDown = function(e) {
+      e.preventDefault();
       var padId = getClosestPad(e);
       checkStart(padId, e);
     };
@@ -435,6 +436,7 @@ define(
     //};
 
     var handleButtonDown = function(e, buttonInfo) {
+      e.preventDefault();
       addPointerId(buttonInfo, e.pointerId, e.timeStamp);
     };