diff --git a/public/scripts/network.js b/public/scripts/network.js
index a66b3c8..47241f0 100644
--- a/public/scripts/network.js
+++ b/public/scripts/network.js
@@ -3,12 +3,21 @@ window.isRtcSupported = !!(window.RTCPeerConnection || window.mozRTCPeerConnecti
 
 if (!window.isRtcSupported) alert("WebRTC must be enabled for PairDrop to work");
 
+window.hiddenProperty = 'hidden' in document ? 'hidden' :
+    'webkitHidden' in document ? 'webkitHidden' :
+        'mozHidden' in document ? 'mozHidden' :
+            null;
+window.visibilityChangeEvent = 'visibilitychange' in document ? 'visibilitychange' :
+    'webkitvisibilitychange' in document ? 'webkitvisibilitychange' :
+        'mozvisibilitychange' in document ? 'mozvisibilitychange' :
+            null;
+
 class ServerConnection {
 
     constructor() {
         this._connect();
         Events.on('pagehide', _ => this._disconnect());
-        document.addEventListener('visibilitychange', _ => this._onVisibilityChange());
+        document.addEventListener(window.visibilityChangeEvent, _ => this._onVisibilityChange());
         if (navigator.connection) navigator.connection.addEventListener('change', _ => this._reconnect());
         Events.on('room-secrets', e => this._sendRoomSecrets(e.detail));
         Events.on('room-secrets-deleted', e => this.send({ type: 'room-secrets-deleted', roomSecrets: e.detail}));
@@ -186,7 +195,7 @@ class ServerConnection {
     }
 
     _onVisibilityChange() {
-        if (document.hidden) return;
+        if (window.hiddenProperty) return;
         this._connect();
     }
 
diff --git a/public_included_ws_fallback/scripts/network.js b/public_included_ws_fallback/scripts/network.js
index e07e85c..42076cc 100644
--- a/public_included_ws_fallback/scripts/network.js
+++ b/public_included_ws_fallback/scripts/network.js
@@ -1,12 +1,21 @@
 window.URL = window.URL || window.webkitURL;
 window.isRtcSupported = !!(window.RTCPeerConnection || window.mozRTCPeerConnection || window.webkitRTCPeerConnection);
 
+window.hiddenProperty = 'hidden' in document ? 'hidden' :
+    'webkitHidden' in document ? 'webkitHidden' :
+        'mozHidden' in document ? 'mozHidden' :
+            null;
+window.visibilityChangeEvent = 'visibilitychange' in document ? 'visibilitychange' :
+    'webkitvisibilitychange' in document ? 'webkitvisibilitychange' :
+        'mozvisibilitychange' in document ? 'mozvisibilitychange' :
+            null;
+
 class ServerConnection {
 
     constructor() {
         this._connect();
         Events.on('pagehide', _ => this._disconnect());
-        document.addEventListener('visibilitychange', _ => this._onVisibilityChange());
+        document.addEventListener(window.visibilityChangeEvent, _ => this._onVisibilityChange());
         if (navigator.connection) navigator.connection.addEventListener('change', _ => this._reconnect());
         Events.on('room-secrets', e => this._sendRoomSecrets(e.detail));
         Events.on('room-secrets-deleted', e => this.send({ type: 'room-secrets-deleted', roomSecrets: e.detail}));
@@ -197,7 +206,7 @@ class ServerConnection {
     }
 
     _onVisibilityChange() {
-        if (document.hidden) return;
+        if (window.hiddenProperty) return;
         this._connect();
     }