SyntaxError: '#-5' is not a valid selector.

View details in Rollbar: [https://app.rollbar.com/a/komagata/fix/item/Bootcamp/1778](https://app.rollbar.com/a/komagata/fix/item/Bootcamp/1778)

```

SyntaxError: '#-5' is not a valid selector.
  File "[native code]", line unknown, in querySelector
  File "webpack:///./app/javascript/answer.js", line 7, in [anonymous]
          const anchorElement = document.querySelector(answerAnchor)
```