1 files changed, 4 insertions, 4 deletions
diff --git a/actioncable/app/assets/javascripts/action_cable.js b/actioncable/app/assets/javascripts/action_cable.js
index a68c76f299..280adbfa83 100644
--- a/actioncable/app/assets/javascripts/action_cable.js
+++ b/actioncable/app/assets/javascripts/action_cable.js
@@ -3,8 +3,8 @@
 })(this, function(exports) {
   "use strict";
   var adapters = {
-    logger: window.console,
-    WebSocket: window.WebSocket
+    logger: self.console,
+    WebSocket: self.WebSocket
   };
   var logger = {
     log: function log() {
@@ -49,7 +49,7 @@
         this.startedAt = now();
         delete this.stoppedAt;
         this.startPolling();
-        document.addEventListener("visibilitychange", this.visibilityDidChange);
+        addEventListener("visibilitychange", this.visibilityDidChange);
         logger.log("ConnectionMonitor started. pollInterval = " + this.getPollInterval() + " ms");
       }
     };
@@ -57,7 +57,7 @@
       if (this.isRunning()) {
         this.stoppedAt = now();
         this.stopPolling();
-        document.removeEventListener("visibilitychange", this.visibilityDidChange);
+        removeEventListener("visibilitychange", this.visibilityDidChange);
         logger.log("ConnectionMonitor stopped");
       }
     };