1 files changed, 1 insertions, 1 deletions

diff --git a/js/slide-controller.js b/js/slide-controller.js
index 84388a9..571317b 100644
--- a/js/slide-controller.js
+++ b/js/slide-controller.js
@@ -72,7 +72,7 @@ SlideController.prototype.onMessage_ = function(e) {
   // Restrict messages to being from this origin. Allow local developmet
   // from file:// though.
   // TODO: It would be dope if FF implemented location.origin!
-  if (e.origin != ORIGIN_ && ORIGIN_ != 'file://') {
+  if (e.origin != ORIGIN_ && ORIGIN_.indexOf('file://') != 0) {
     alert('Someone tried to postMessage from an unknown origin');
     return;
   }