diff --git a/static/dev.html b/static/dev.html
index 4f24b11..4f8bcc9 100644
--- a/static/dev.html
+++ b/static/dev.html
@@ -109,6 +109,37 @@
     function updateHeaderHeight() { const header = document.querySelector('header'); document.body.style.setProperty('--header-height', `${header.offsetHeight}px`); }
     window.addEventListener('load', updateHeaderHeight); window.addEventListener('resize', updateHeaderHeight);
 
+    let MainChart = new Chart(document.getElementById('mainChart').getContext('2d'), {
+        type: 'line',
+        data: {
+            datasets: []
+        },
+        options: {
+            responsive: true,
+            scales: {
+                x: {
+                    type: 'time',
+                    title: {
+                        display: true,
+                        text: 'Время',
+                        font: {
+                            padding: 4,
+                            size: 20,
+                            weight: 'bold',
+                            family: 'Arial'
+                        },
+                        //color: 'darkblue'
+                    },
+                },
+                y: {
+                    beginAtZero: true,
+                    type: 'linear',
+                    position: 'left'
+                }
+            }
+        }
+    })
+
     const app = Vue.createApp({
         data() {
             return {
@@ -203,8 +234,8 @@
                                 fill: false,
                             })
                         }
-                        this.chart.datasets = datasets
-                        this.chart.update()
+                        MainChart.datasets = datasets
+                        MainChart.update()
                     })
                     .catch((reason) => { alert(`Ошибка при чтении логов: ${reason}`) })
                     .finally(() => { this.submitStatus.logView = false })
@@ -223,37 +254,6 @@
                 this.updateLoggingStatisticsSettings(vals)
             }
             doFetchSettings().then(() => {})
-            let chart = new Chart(document.getElementById('mainChart').getContext('2d'), {
-                type: 'line',
-                data: {
-                    datasets: []
-                },
-                options: {
-                    responsive: true,
-                    scales: {
-                        x: {
-                            type: 'time',
-                            title: {
-                                display: true,
-                                text: 'Время',
-                                font: {
-                                    padding: 4,
-                                    size: 20,
-                                    weight: 'bold',
-                                    family: 'Arial'
-                                },
-                                //color: 'darkblue'
-                            },
-                        },
-                        y: {
-                            beginAtZero: true,
-                            type: 'linear',
-                            position: 'left'
-                        }
-                    }
-                }
-            })
-            this.chart = chart
             document.getElementById("app").removeAttribute("hidden")
             //this.chart = chart
         }