Don't destroy incoming requests during the stopping phase

lib/core.js

@@ -506,12 +506,6 @@ exports = module.exports = internals.Core = class {
 
         return (req, res) => {
 
-            // $lab:coverage:off$ $not:allowsStoppedReq$
-            if (this.phase === 'stopping') {
-                return req.destroy();
-            }
-            // $lab:coverage:on$ $not:allowsStoppedReq$
-
             // Create request
 
             const request = Request.generate(this.root, req, res, options);

test/core.js

@@ -19,6 +19,7 @@ const Hapi = require('..');
 const Hoek = require('@hapi/hoek');
 const Inert = require('@hapi/inert');
 const Lab = require('@hapi/lab');
+const Teamwork = require('@hapi/teamwork');
 const Vision = require('@hapi/vision');
 const Wreck = require('@hapi/wreck');
 
@@ -938,6 +939,26 @@ describe('Core', () => {
             expect(server._core.started).to.equal(false);
         });
 
+        it('allows incoming requests during the stopping phase', async () => {
+
+            const team = new Teamwork.Team();
+
+            const server = Hapi.server();
+            server.route({ method: 'GET', path: '/', handler: () => 'ok' });
+            server.ext('onPreStop', () => team.work);
+
+            await server.start();
+            const stop = server.stop();
+            const { res, payload } = await Wreck.get(`http://localhost:${server.info.port}`);
+
+            team.attend();       // Allow server to finalize stop
+            await stop;
+
+            expect(res.headers.connection).to.equal('close');
+            expect(payload.toString()).to.equal('ok');
+            expect(server._core.started).to.equal(false);
+        });
+
         it('finishes in-progress requests and ends connection', async () => {
 
             let stop;