cherry-pick(#27098): fix(har): handle invalid Expires/Max-Age (#27123)

Fixes #27073.

Author: dgozman

packages/playwright-core/src/server/har/harTracer.ts

@@ -223,7 +223,7 @@ export class HarTracer {
     harEntry.response.cookies = this._options.omitCookies ? [] : event.cookies.map(c => {
       return {
         ...c,
-        expires: c.expires === -1 ? undefined : new Date(c.expires).toISOString()
+        expires: c.expires === -1 ? undefined : safeDateToISOString(c.expires)
       };
     });
 
@@ -658,11 +658,11 @@ function parseCookie(c: string): har.Cookie {
     if (name === 'Domain')
       cookie.domain = value;
     if (name === 'Expires')
-      cookie.expires = new Date(value).toISOString();
+      cookie.expires = safeDateToISOString(value);
     if (name === 'HttpOnly')
       cookie.httpOnly = true;
     if (name === 'Max-Age')
-      cookie.expires = new Date(Date.now() + (+value) * 1000).toISOString();
+      cookie.expires = safeDateToISOString(Date.now() + (+value) * 1000);
     if (name === 'Path')
       cookie.path = value;
     if (name === 'SameSite')
@@ -673,4 +673,11 @@ function parseCookie(c: string): har.Cookie {
   return cookie;
 }
 
+function safeDateToISOString(value: string | number) {
+  try {
+    return new Date(value).toISOString();
+  } catch (e) {
+  }
+}
+
 const startedDateSymbol = Symbol('startedDate');

tests/library/har.spec.ts

@@ -226,6 +226,20 @@ it('should include set-cookies', async ({ contextFactory, server }, testInfo) =>
   expect(new Date(cookies[2].expires).valueOf()).toBeGreaterThan(Date.now());
 });
 
+it('should skip invalid Expires', async ({ contextFactory, server }, testInfo) => {
+  const { page, getLog } = await pageWithHar(contextFactory, testInfo);
+  server.setRoute('/empty.html', (req, res) => {
+    res.setHeader('Set-Cookie', [
+      'name=value;Expires=Sat Sep 14 01:02:27 CET 2024',
+    ]);
+    res.end();
+  });
+  await page.goto(server.EMPTY_PAGE);
+  const log = await getLog();
+  const cookies = log.entries[0].response.cookies;
+  expect(cookies[0]).toEqual({ name: 'name', value: 'value' });
+});
+
 it('should include set-cookies with comma', async ({ contextFactory, server, browserName }, testInfo) => {
   it.fixme(browserName === 'webkit', 'We get "name1=val, ue1, name2=val, ue2" as a header value');
   const { page, getLog } = await pageWithHar(contextFactory, testInfo);