migration now works also in electron

public/javascripts/init.js

@@ -106,10 +106,6 @@ $(document).tooltip({
     }
 });
 
-function isElectron() {
-    return window && window.process && window.process.type;
-}
-
 let appShown = false;
 
 function showAppIfHidden() {

public/javascripts/migration.js

@@ -1,7 +1,7 @@
 "use strict";
 
 $(document).ready(() => {
-    $.get(baseApiUrl + 'migration').then(result => {
+    server.get('migration').then(result => {
         const appDbVersion = result.app_db_version;
         const dbVersion = result.db_version;
 
@@ -22,11 +22,7 @@ $("#run-migration").click(async () => {
 
     $("#migration-result").show();
 
-    const result = await $.ajax({
-        url: baseApiUrl + 'migration',
-        type: 'POST',
-        error: () => showError("Migration failed with unknown error")
-    });
+    const result = await server.post('migration');
 
     for (const migration of result.migrations) {
         const row = $('<tr>')

public/javascripts/server.js

@@ -1,7 +1,14 @@
 const server = (function() {
     function getHeaders() {
+        let protectedSessionId = null;
+
+        try { // this is because protected session might not be declared in some cases - like when it's included in migration page
+            protectedSessionId = protected_session.getProtectedSessionId();
+        }
+        catch(e) {}
+
         return {
-            'x-protected-session-id': protected_session.getProtectedSessionId()
+            'x-protected-session-id': protectedSessionId
         };
     }
 

public/javascripts/utils.js

@@ -46,4 +46,8 @@ function formatDate(date) {
 
 function formatDateTime(date) {
     return formatDate(date) + " " + formatTime(date);
+}
+
+function isElectron() {
+    return window && window.process && window.process.type;
 }