diff --git a/src/tools/browser.ts b/src/tools/browser.ts
index 8dd4530c68..9c90b928ba 100644
--- a/src/tools/browser.ts
+++ b/src/tools/browser.ts
@@ -93,6 +93,7 @@ export async function preparePage(page: playwright.Page) {
     setInterval(() => {
       window.onerror = console.error;
       window.onunhandledrejection = console.error;
+      (window as any).wppForceMainLoad = true;
     }, 500);
   });
 
diff --git a/src/webpack/index.ts b/src/webpack/index.ts
index b1f842c339..aad6f9f5f2 100644
--- a/src/webpack/index.ts
+++ b/src/webpack/index.ts
@@ -89,7 +89,11 @@ export function injectLoader(): void {
     debug('injected');
     await internalEv.emitAsync('webpack.injected').catch(() => null);
 
-    await new Promise((resolve) => setTimeout(resolve, 1000));
+    if ((window as any).wppForceMainLoad) {
+      await new Promise((resolve) => setTimeout(resolve, 5000));
+    } else {
+      await internalEv.waitFor('conn.main_loaded');
+    }
 
     const allRuntimes = new Array(10000)
       .fill(1)