diff --git a/lib/ace/lib/event.js b/lib/ace/lib/event.js
index e904e024..39d115b4 100644
--- a/lib/ace/lib/event.js
+++ b/lib/ace/lib/event.js
@@ -279,6 +279,14 @@ function normalizeCommandKeys(callback, e, keyCode) {
                 return;
         }
     }
+    
+    if (useragent.isChromeOS && hashId & 8) {
+        callback(e, hashId, keyCode);
+        if (e.defaultPrevented)
+            return;
+        else
+            hashId &= ~8;
+    }
 
     // If there is no hashId and the keyCode is not a function key, then
     // we don't call the callback as we don't handle a command key here
diff --git a/lib/ace/lib/useragent.js b/lib/ace/lib/useragent.js
index e56e89a9..e539dae3 100644
--- a/lib/ace/lib/useragent.js
+++ b/lib/ace/lib/useragent.js
@@ -101,4 +101,6 @@ exports.isIPad = ua.indexOf("iPad") >= 0;
 
 exports.isTouchPad = ua.indexOf("TouchPad") >= 0;
 
+exports.isChromeOS = ua.indexOf(" CrOS ") >= 0;
+
 });