diff --git a/EnvelopeGenerator.Web/wwwroot/js/api-service.js b/EnvelopeGenerator.Web/wwwroot/js/api-service.js
index 5b0dcb70..504329d9 100644
--- a/EnvelopeGenerator.Web/wwwroot/js/api-service.js
+++ b/EnvelopeGenerator.Web/wwwroot/js/api-service.js
@@ -1,14 +1,14 @@
 //#region parameters
-const env = {
+const env = Object.freeze({
   xsrfToken: document.getElementsByName('__RequestVerificationToken')[0].value,
   envKey: document.querySelector('meta[name="env-key"]').getAttribute('content')
-}
+})
 
-const url = {
+const url = Object.freeze({
   reject: `/api/annotation/reject`,
   rejectRedir: `/envelope/${env.envKey}`,
   share: `/api/readonly`
-};
+});
 //#endregion
 
 //#region request helper methods
diff --git a/EnvelopeGenerator.Web/wwwroot/js/api-service.min.js b/EnvelopeGenerator.Web/wwwroot/js/api-service.min.js
index 7786546b..6082016e 100644
--- a/EnvelopeGenerator.Web/wwwroot/js/api-service.min.js
+++ b/EnvelopeGenerator.Web/wwwroot/js/api-service.min.js
@@ -1 +1 @@
-function sendRequest(n,t,i=undefined){const r={credentials:"include",method:n,headers:{"X-XSRF-TOKEN":env.xsrfToken}};return i!==undefined&&(r.body=JSON.stringify(i),r.headers["Content-Type"]="application/json"),fetch(t,r)}function getRequest(n){return sendRequest("GET",n)}function postRequest(n,t){return sendRequest("POST",n,t)}function redirect(n){window.location.href=n}function signEnvelope(n){return postRequest(`/api/annotation`,n)}function rejectEnvelope(n){return postRequest(url.reject,n)}function shareEnvelope(n,t){return postRequest(url.share,{receiverMail:n,dateValid:t})}function redirRejected(){redirect(url.rejectRedir)}const env={xsrfToken:document.getElementsByName("__RequestVerificationToken")[0].value,envKey:document.querySelector('meta[name="env-key"]').getAttribute("content")},url={reject:`/api/annotation/reject`,rejectRedir:`/envelope/${env.envKey}`,share:`/api/readonly`};
\ No newline at end of file
+function sendRequest(n,t,i=undefined){const r={credentials:"include",method:n,headers:{"X-XSRF-TOKEN":env.xsrfToken}};return i!==undefined&&(r.body=JSON.stringify(i),r.headers["Content-Type"]="application/json"),fetch(t,r)}function getRequest(n){return sendRequest("GET",n)}function postRequest(n,t){return sendRequest("POST",n,t)}function redirect(n){window.location.href=n}function signEnvelope(n){return postRequest(`/api/annotation`,n)}function rejectEnvelope(n){return postRequest(url.reject,n)}function shareEnvelope(n,t){return postRequest(url.share,{receiverMail:n,dateValid:t})}function redirRejected(){redirect(url.rejectRedir)}const env=Object.freeze({xsrfToken:document.getElementsByName("__RequestVerificationToken")[0].value,envKey:document.querySelector('meta[name="env-key"]').getAttribute("content")}),url=Object.freeze({reject:`/api/annotation/reject`,rejectRedir:`/envelope/${env.envKey}`,share:`/api/readonly`});
\ No newline at end of file