fix(mitm): enable cache handler for test

Author: blakebyrnes

mitm/test/http2.test.ts

@@ -9,6 +9,7 @@ import HttpRequestHandler from '../handlers/HttpRequestHandler';
 import HeadersHandler from '../handlers/HeadersHandler';
 import MitmRequestContext from '../lib/MitmRequestContext';
 import { parseRawHeaders } from '../lib/Utils';
+import CacheHandler from '../handlers/CacheHandler';
 
 const mocks = {
   httpRequestHandler: {
@@ -222,6 +223,8 @@ test('should handle h2 client going to h1 request', async () => {
 
 test('should handle cache headers for h2', async () => {
   const etags: string[] = [];
+  CacheHandler.isEnabled = true;
+  Helpers.onClose(() => (CacheHandler.isEnabled = false));
   const server = await Helpers.runHttp2Server((req, res1) => {
     if (req.headers[':path'] === '/cached') {
       etags.push(req.headers['if-none-match'] as string);