String.charCodeAt is firefox specific

1 files changed, 2 insertions, 2 deletions

diff --git a/src/main.js b/src/main.js
index f9d830e9..b4f71001 100644
--- a/src/main.js
+++ b/src/main.js
@@ -33,8 +33,8 @@ function(textanalysis_ui,   textanalysis,   buttons,   history,   drag_n_drop,
         }
 
         document.body.onkeyup = function(e) {
-            var key = (e.key || (e.charCode && String.charCodeAt(e.charCode))
-                             || (e.which && String.charCodeAt(e.which))).toLowerCase();
+            var key = (e.key || (e.charCode && String.fromCharCode(e.charCode))
+                             || (e.which && String.fromCharCode(e.which))).toLowerCase();
 
             if (e.altKey && e.ctrlKey && key == 'i') {
                 $('#textanalyser').focus();