[BUG] Cannot set cookie in juggler

[jperl]

Context:

• Playwright Version: =0.11.1-next.1583521768218
• Operating System: Mac

Code Snippet

https://github.com/qawolf/playwright-utils/blob/aaf40dca8eeb89d6c9e693d9533d126bf715e36a/tests/setState.test.ts

Describe the bug

    Protocol error (Browser.setCookies): ERROR: failed to call method 'Browser.setCookies' with
 parameters {
      "browserContextId": "cf29fe83-62dd-b248-ae26-37b93dee95b2",
      "cookies": [
        {
          "name": "csrf_same_site",
          "value": "1",
          "domain": ".twitter.com",
          "path": "/",
          "expires": 1615052185,
          "httpOnly": true,
          "secure": true,
          "session": false,
          "sameSite": "Lax"
        }
      ]
    }
    Found property "<root>.cookies[0].session" - false which is not described in this scheme _dispatch@chrome://juggler/content/protocol/Dispatcher.js:103:15

[aslushnikov]

Yep, surprisingly we didn't have a single test for non-session cookies!