diff --git a/scripts/generateReport.ts b/scripts/generateReport.ts
index 89632addf..cd3767404 100644
--- a/scripts/generateReport.ts
+++ b/scripts/generateReport.ts
@@ -42,8 +42,8 @@ const page = await browser.newPage();
 await page.setUserAgent("Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Safari/537.36");
 
 async function maybeGetError(handle: JSHandle) {
-    return (handle as JSHandle<Error>)?.getProperty("message")
-        .then(m => m.jsonValue());
+    return (handle as JSHandle<Error>).getProperty("message")
+        .then(m => m?.jsonValue() ?? "Unknown Error");
 }
 
 const report = {
@@ -356,7 +356,9 @@ async function runtime(token: string) {
                     // setImmediate to avoid blocking the factory patching execution while checking for lazy chunks
                     setTimeout(() => {
                         let isResolved = false;
-                        searchAndLoadLazyChunks(String(factory)).then(() => isResolved = true);
+                        searchAndLoadLazyChunks(String(factory))
+                            .then(() => isResolved = true)
+                            .catch(() => isResolved = true);
 
                         chunksSearchPromises.push(() => isResolved);
                     }, 0);
@@ -364,7 +366,9 @@ async function runtime(token: string) {
 
                 for (const factoryId in wreq.m) {
                     let isResolved = false;
-                    searchAndLoadLazyChunks(String(wreq.m[factoryId])).then(() => isResolved = true);
+                    searchAndLoadLazyChunks(String(wreq.m[factoryId]))
+                        .then(() => isResolved = true)
+                        .catch(() => isResolved = true);
 
                     chunksSearchPromises.push(() => isResolved);
                 }
diff --git a/src/webpack/webpack.ts b/src/webpack/webpack.ts
index a46a7de45..d9301508d 100644
--- a/src/webpack/webpack.ts
+++ b/src/webpack/webpack.ts
@@ -76,6 +76,8 @@ export const factoryListeners = new Set<(factory: ModuleFactory) => void>();
 
 export function _initWebpack(webpackRequire: WebpackRequire) {
     wreq = webpackRequire;
+
+    if (webpackRequire.c == null) return;
     cache = webpackRequire.c;
 
     Reflect.defineProperty(webpackRequire.c, Symbol.toStringTag, {
@@ -507,10 +509,10 @@ export function search(...filters: Array<string | RegExp>) {
     outer:
     for (const id in factories) {
         const factory = factories[id];
-        const str = String(factory);
+        const factoryStr = String(factory);
         for (const filter of filters) {
-            if (typeof filter === "string" && !str.includes(filter)) continue outer;
-            if (filter instanceof RegExp && !filter.test(str)) continue outer;
+            if (typeof filter === "string" && !factoryStr.includes(factoryStr)) continue outer;
+            if (filter instanceof RegExp && !filter.test(factoryStr)) continue outer;
         }
         results[id] = factory;
     }