Opening a page that contains the Typeahead Search widget on the Service Portal shows 3 error messages.
"Script source code logged to console"
"Failing widget: 'Typeahead Search' (fa20ec02cb31020000f8d856634c9ce9)"
The instance of the Typeahead widget on the page has Additional Options set for contextual_search_source for a search source that does not exist. Would look something like below.
Make sure customer has a valid sys_id for an existing search source.