From 9703be932d78bf07455557ad42fb97d9a51f25bc Mon Sep 17 00:00:00 2001
From: Guillaume Beraudo <guillaume.beraudo@camptocamp.com>
Date: Wed, 10 Feb 2016 14:26:03 +0100
Subject: [PATCH] Fix checks for undefined in attributioncontrol

---
 src/ol/control/attributioncontrol.js | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/ol/control/attributioncontrol.js b/src/ol/control/attributioncontrol.js
index 7795f29cfa..4ec528b2b3 100644
--- a/src/ol/control/attributioncontrol.js
+++ b/src/ol/control/attributioncontrol.js
@@ -64,11 +64,11 @@ ol.control.Attribution = function(opt_options) {
     this.collapsed_ = false;
   }
 
-  var className = options.className ? options.className : 'ol-attribution';
+  var className = options.className !== undefined ? options.className : 'ol-attribution';
 
-  var tipLabel = options.tipLabel ? options.tipLabel : 'Attributions';
+  var tipLabel = options.tipLabel !== undefined ? options.tipLabel : 'Attributions';
 
-  var collapseLabel = options.collapseLabel ? options.collapseLabel : '\u00BB';
+  var collapseLabel = options.collapseLabel !== undefined ? options.collapseLabel : '\u00BB';
 
   /**
    * @private
@@ -78,7 +78,7 @@ ol.control.Attribution = function(opt_options) {
       goog.dom.createDom('SPAN', {}, collapseLabel) :
       collapseLabel;
 
-  var label = options.label ? options.label : 'i';
+  var label = options.label !== undefined ? options.label : 'i';
 
   /**
    * @private