diff --git a/assets/readdevice.js b/assets/readdevice.js
index 9bb7a91..edda8ca 100644
--- a/assets/readdevice.js
+++ b/assets/readdevice.js
@@ -455,7 +455,7 @@ async function updateHistory(){
     var testdetails = JSON.stringify(mainObject);
 
     var serialnumber = serial;
-    var action = 'createHistory';
+    var action = '/v0/application/createHistory';
     var url = link+action;
     
     var bearer = 'Bearer ' + data;
diff --git a/buildtool.php b/buildtool.php
index 3c912a3..46e9b9e 100644
--- a/buildtool.php
+++ b/buildtool.php
@@ -89,6 +89,11 @@ echo '
 <script src = "./assets/charts.js?'.script_version.'"></script>
 <script src = "./assets/jquery-2.1.4.min.js"></script>
 <script src = "./assets/DYMO.Label.Framework.latest.js?'.script_version.'" type="text/javascript" charset="UTF-8"> </script>
+<script>
+	var link = "'.$baseurl.'";
+    var port, textEncoder, writableStreamClosed, writer, historyIndex = -1;
+    const lineHistory = [];
+</script>';
 ';
 
 template_footer();