rollbar.js configuration with cookie

index.html

<script>
_rollbarConfig = {
  accessToken: "token here",
  payload: {
    environment: "production",  // or 'development', etc.
    person: {
      id: "123",  // required if present, string up to 40 chars
      username: "brian",  // optional, string up to 255 chars
      email: "brian@rollbar.com"  // optional, string up to 255 chars
    },
    client: {
      javascript: {
        cookie: document.cookie
      }
    }
  }
};
// rest of snippet goes here
</script>