diff --git a/packages/node_modules/@node-red/editor-client/src/js/polyfills.js b/packages/node_modules/@node-red/editor-client/src/js/polyfills.js
index 0fccee8d9..ffe7269f9 100644
--- a/packages/node_modules/@node-red/editor-client/src/js/polyfills.js
+++ b/packages/node_modules/@node-red/editor-client/src/js/polyfills.js
@@ -12,12 +12,6 @@
             Object.defineProperty(SVGElement.prototype, 'children', Object.getOwnPropertyDescriptor(HTMLElement.prototype, 'children'));
         }
 
-        if (!Array.from) {
-            // JSONata provides an Array.from polyfill that doesn't handle iterables.
-            // So in IE11 we expect Array.from to exist already, it just needs some
-            // changes to support iterables.
-            throw new Error("Missing Array.from base polyfill");
-        }
         Array.from = function() {
             if (arguments.length > 1) {
                 throw new Error("Node-RED's IE11 Array.from polyfill doesn't support multiple arguments");