Fix barcode detection

www/assets/js/track.js

@@ -27,13 +27,14 @@ function addTrackingSuggestions() {
 function openTrackingBarcodeScanner() {
     scanBarcode(function (result) {
         var code = "";
+        var coderegex = /^[0-9a-zA-Z]{5,40}$/;
         if (result.startsWith("https://helena.express/track#")) {
             code = result.split("#")[1];
         } else if (result.startsWith("http") && result.includes("#")) {
-            if (result.split("#")[1].test(/^[0-9a-zA-Z]{5,40}$/)) {
+            if (coderegex.test(result.split("#")[1])) {
                 code = result.split("#")[1];
             }
-        } else if (result.test(/^[0-9a-zA-Z]{5,40}$/)) {
+        } else if (coderegex.test(result)) {
             code = result;
         } else {
             app.dialog.alert("This app can't understand what's in that barcode.", "Error");