diff --git a/apps/demos/Demos/DataGrid/ExcelJSCellCustomization/jQuery/index.html b/apps/demos/Demos/DataGrid/ExcelJSCellCustomization/jQuery/index.html
index 4e0a67314df4..3c238c127d2e 100644
--- a/apps/demos/Demos/DataGrid/ExcelJSCellCustomization/jQuery/index.html
+++ b/apps/demos/Demos/DataGrid/ExcelJSCellCustomization/jQuery/index.html
@@ -6,12 +6,6 @@
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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diff --git a/apps/demos/Demos/DataGrid/ExcelJSExportImages/jQuery/index.html b/apps/demos/Demos/DataGrid/ExcelJSExportImages/jQuery/index.html
index 4e0a67314df4..3c238c127d2e 100644
--- a/apps/demos/Demos/DataGrid/ExcelJSExportImages/jQuery/index.html
+++ b/apps/demos/Demos/DataGrid/ExcelJSExportImages/jQuery/index.html
@@ -6,12 +6,6 @@
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-      src="https://cdnjs.cloudflare.com/ajax/libs/babel-polyfill/7.12.1/polyfill.min.js"
-      integrity="sha384-FCwalFIn/oY5yqK5WoHWMqsdHAQgG5e8hoHwtQ/stzqubOMOvFXsWocs/XvlofdX"
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       type="text/javascript"
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diff --git a/apps/demos/Demos/DataGrid/ExcelJSExportMultipleGrids/jQuery/index.html b/apps/demos/Demos/DataGrid/ExcelJSExportMultipleGrids/jQuery/index.html
index 3cccd1b56fc0..93c14715a7c8 100644
--- a/apps/demos/Demos/DataGrid/ExcelJSExportMultipleGrids/jQuery/index.html
+++ b/apps/demos/Demos/DataGrid/ExcelJSExportMultipleGrids/jQuery/index.html
@@ -6,12 +6,6 @@
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-      src="https://cdnjs.cloudflare.com/ajax/libs/babel-polyfill/7.12.1/polyfill.min.js"
-      integrity="sha384-FCwalFIn/oY5yqK5WoHWMqsdHAQgG5e8hoHwtQ/stzqubOMOvFXsWocs/XvlofdX"
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diff --git a/apps/demos/Demos/DataGrid/ExcelJSHeaderAndFooter/jQuery/index.html b/apps/demos/Demos/DataGrid/ExcelJSHeaderAndFooter/jQuery/index.html
index 8f9020ae921d..d401d5935472 100644
--- a/apps/demos/Demos/DataGrid/ExcelJSHeaderAndFooter/jQuery/index.html
+++ b/apps/demos/Demos/DataGrid/ExcelJSHeaderAndFooter/jQuery/index.html
@@ -6,12 +6,6 @@
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-    <script
-      type="text/javascript"
-      src="https://cdnjs.cloudflare.com/ajax/libs/babel-polyfill/7.12.1/polyfill.min.js"
-      integrity="sha384-FCwalFIn/oY5yqK5WoHWMqsdHAQgG5e8hoHwtQ/stzqubOMOvFXsWocs/XvlofdX"
-      crossorigin="anonymous"
-    ></script>
     <script
       type="text/javascript"
       src="https://cdn.jsdelivr.net/npm/devextreme-exceljs-fork@4.4.4/dist/dx-exceljs-fork.min.js"
diff --git a/apps/demos/Demos/DataGrid/ExcelJSOverview/jQuery/index.html b/apps/demos/Demos/DataGrid/ExcelJSOverview/jQuery/index.html
index 4e0a67314df4..3c238c127d2e 100644
--- a/apps/demos/Demos/DataGrid/ExcelJSOverview/jQuery/index.html
+++ b/apps/demos/Demos/DataGrid/ExcelJSOverview/jQuery/index.html
@@ -6,12 +6,6 @@
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=5.0" />
 
-    <script
-      type="text/javascript"
-      src="https://cdnjs.cloudflare.com/ajax/libs/babel-polyfill/7.12.1/polyfill.min.js"
-      integrity="sha384-FCwalFIn/oY5yqK5WoHWMqsdHAQgG5e8hoHwtQ/stzqubOMOvFXsWocs/XvlofdX"
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-    ></script>
     <script
       type="text/javascript"
       src="https://cdn.jsdelivr.net/npm/devextreme-exceljs-fork@4.4.4/dist/dx-exceljs-fork.min.js"
diff --git a/apps/demos/Demos/PivotGrid/ExcelJSCellCustomization/jQuery/index.html b/apps/demos/Demos/PivotGrid/ExcelJSCellCustomization/jQuery/index.html
index b9b5d513823f..7897a2d77651 100644
--- a/apps/demos/Demos/PivotGrid/ExcelJSCellCustomization/jQuery/index.html
+++ b/apps/demos/Demos/PivotGrid/ExcelJSCellCustomization/jQuery/index.html
@@ -6,12 +6,6 @@
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=5.0" />
 
-    <script
-      type="text/javascript"
-      src="https://cdnjs.cloudflare.com/ajax/libs/babel-polyfill/7.12.1/polyfill.min.js"
-      integrity="sha384-FCwalFIn/oY5yqK5WoHWMqsdHAQgG5e8hoHwtQ/stzqubOMOvFXsWocs/XvlofdX"
-      crossorigin="anonymous"
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     <script
       type="text/javascript"
       src="https://cdn.jsdelivr.net/npm/devextreme-exceljs-fork@4.4.4/dist/dx-exceljs-fork.min.js"
diff --git a/apps/demos/Demos/PivotGrid/ExcelJSOverview/jQuery/index.html b/apps/demos/Demos/PivotGrid/ExcelJSOverview/jQuery/index.html
index b9b5d513823f..7897a2d77651 100644
--- a/apps/demos/Demos/PivotGrid/ExcelJSOverview/jQuery/index.html
+++ b/apps/demos/Demos/PivotGrid/ExcelJSOverview/jQuery/index.html
@@ -6,12 +6,6 @@
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=5.0" />
 
-    <script
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-      src="https://cdnjs.cloudflare.com/ajax/libs/babel-polyfill/7.12.1/polyfill.min.js"
-      integrity="sha384-FCwalFIn/oY5yqK5WoHWMqsdHAQgG5e8hoHwtQ/stzqubOMOvFXsWocs/XvlofdX"
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-    ></script>
     <script
       type="text/javascript"
       src="https://cdn.jsdelivr.net/npm/devextreme-exceljs-fork@4.4.4/dist/dx-exceljs-fork.min.js"
diff --git a/apps/demos/Demos/PivotGrid/ExcelJsHeaderAndFooter/jQuery/index.html b/apps/demos/Demos/PivotGrid/ExcelJsHeaderAndFooter/jQuery/index.html
index e9df81dc5d7f..5a5e03a3b4b2 100644
--- a/apps/demos/Demos/PivotGrid/ExcelJsHeaderAndFooter/jQuery/index.html
+++ b/apps/demos/Demos/PivotGrid/ExcelJsHeaderAndFooter/jQuery/index.html
@@ -6,12 +6,6 @@
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=5.0" />
 
-    <script
-      type="text/javascript"
-      src="https://cdnjs.cloudflare.com/ajax/libs/babel-polyfill/7.12.1/polyfill.min.js"
-      integrity="sha384-FCwalFIn/oY5yqK5WoHWMqsdHAQgG5e8hoHwtQ/stzqubOMOvFXsWocs/XvlofdX"
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     <script
       type="text/javascript"
       src="https://cdn.jsdelivr.net/npm/devextreme-exceljs-fork@4.4.4/dist/dx-exceljs-fork.min.js"