diff --git a/packages/puppeteer-core/src/common/Debug.ts b/packages/puppeteer-core/src/common/Debug.ts
index 06ac9f58f9c..20b8df13a7d 100644
--- a/packages/puppeteer-core/src/common/Debug.ts
+++ b/packages/puppeteer-core/src/common/Debug.ts
@@ -9,8 +9,7 @@ import type Debug from 'debug';
 import {isNode} from '../environment.js';
 
 declare global {
-  // eslint-disable-next-line no-var
-  var __PUPPETEER_DEBUG: string;
+  const __PUPPETEER_DEBUG: string;
 }
 
 /**
diff --git a/packages/puppeteer-core/src/util/decorators.ts b/packages/puppeteer-core/src/util/decorators.ts
index c4dc3b6c0df..8859eac540f 100644
--- a/packages/puppeteer-core/src/util/decorators.ts
+++ b/packages/puppeteer-core/src/util/decorators.ts
@@ -190,11 +190,9 @@ export function bubble<T extends EventType[]>(events?: T) {
         emitter.on('*', handler);
         set.call(this, emitter);
       },
-      // @ts-expect-error -- TypeScript incorrectly types init to require a
-      // return.
       init(emitter) {
         if (emitter === undefined) {
-          return;
+          return emitter;
         }
         const handler = bubbleHandlers.get(this)!.get(events)!;
 
diff --git a/test/src/oopif.spec.ts b/test/src/oopif.spec.ts
index a36a8bc8673..d5ff0c64165 100644
--- a/test/src/oopif.spec.ts
+++ b/test/src/oopif.spec.ts
@@ -207,14 +207,10 @@ describe('OOPIF', function () {
     );
     const frame = await framePromise;
     await frame.evaluate(() => {
-      // eslint-disable-next-line @typescript-eslint/ban-ts-comment
-      // @ts-expect-error
-      _test = 'Test 123!';
+      (window as any)._test = 'Test 123!';
     });
     const result = await frame.evaluate(() => {
-      // eslint-disable-next-line @typescript-eslint/ban-ts-comment
-      // @ts-expect-error
-      return window._test;
+      return (window as any)._test;
     });
     expect(result).toBe('Test 123!');
   });
diff --git a/test/src/requestinterception.spec.ts b/test/src/requestinterception.spec.ts
index e5d4a6ba35c..fe3e84676e8 100644
--- a/test/src/requestinterception.spec.ts
+++ b/test/src/requestinterception.spec.ts
@@ -134,8 +134,11 @@ describe('request interception', function () {
       await cdp.send('DOM.enable');
       const urls: string[] = [];
       page.on('request', request => {
+        void request.continue();
+        if (isFavicon(request)) {
+          return;
+        }
         urls.push(request.url());
-        return request.continue();
       });
       // This causes network requests without networkId.
       await cdp.send('CSS.enable');