"Signing out" throws exception "Cannot read properties of undefined (reading 'name') "

### This issue is for a: (mark with an `x`)
```
- [x] bug report -> please search issues before submitting
```

### Minimal steps to reproduce
Sign in and then Sign out

it will have this error showing on the page:

Start by reproducing the sign-in and sign-out flow in the JavaScript sample and capture the full exception context shown on the page. No file or test is named in the issue, so trace the undefined name value to its source. Done means signing out completes without the reported exception.

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