diff --git a/src/common/Platform.ts b/src/common/Platform.ts
index 4102f20c..ec34acde 100644
--- a/src/common/Platform.ts
+++ b/src/common/Platform.ts
@@ -14,7 +14,10 @@ interface INavigator {
 declare const navigator: INavigator;
 declare const process: unknown;
 
-export const isNode = (typeof process !== 'undefined' && 'title' in (process as any)) ? true : false;
+// navigator.userAgent is also checked here because bundling with the process module can cause
+// issues otherwise. Note that navigator exists in Node.js 21+ but the userAgent is
+// "Node.js/<version>".
+export const isNode = (typeof process !== 'undefined' && 'title' in (process as any) && (typeof navigator === 'undefined' || navigator.userAgent.startsWith('Node.js/'))) ? true : false;
 const userAgent = (isNode) ? 'node' : navigator.userAgent;
 const platform = (isNode) ? 'node' : navigator.platform;