1 files changed, 9 insertions, 1 deletions
diff --git a/src/mono/wasm/runtime/startup.ts b/src/mono/wasm/runtime/startup.ts
index c33549c2717..5a5e69cd441 100644
--- a/src/mono/wasm/runtime/startup.ts
+++ b/src/mono/wasm/runtime/startup.ts
@@ -17,6 +17,7 @@ import { DotnetPublicAPI } from "./exports";
 import { mono_on_abort } from "./run";
 import { mono_wasm_new_root } from "./roots";
 import { init_crypto } from "./crypto-worker";
+import { init_polyfills } from "./polyfills";
 
 export let runtime_is_initialized_resolve: () => void;
 export let runtime_is_initialized_reject: (reason?: any) => void;
@@ -118,9 +119,10 @@ async function mono_wasm_pre_init(): Promise<void> {
 
     // wait for locateFile setup on NodeJs
     if (ENVIRONMENT_IS_NODE && ENVIRONMENT_IS_ESM) {
-        await requirePromise;
+        INTERNAL.require = await requirePromise;
     }
 
+    init_polyfills();
     init_crypto();
 
     if (moduleExt.configSrc) {
@@ -156,6 +158,9 @@ async function mono_wasm_pre_init(): Promise<void> {
             throw err;
         }
     }
+    if (!moduleExt.configSrc && !moduleExt.config) {
+        Module.print("MONO_WASM: configSrc nor config was specified");
+    }
 
     Module.removeRunDependency("mono_wasm_pre_init");
 }
@@ -166,6 +171,9 @@ function mono_wasm_after_runtime_initialized(): void {
     }
     finalize_assets(Module.config);
     finalize_startup(Module.config);
+    if (!ctx || !ctx.loaded_files || ctx.loaded_files.length == 0) {
+        Module.print("MONO_WASM: no files were loaded into runtime");
+    }
 }
 
 function _print_error(message: string, err: any): void {