Description of the Change

Prevents a crash occurring in Instant Results and Orders Autosuggest for requests to the search API that return a non-200 or non-JSON response by catching and logging errors to the console.

Closes #3675

How to test the Change

1. Enable Orders Autosuggest and sync.
2. Filter ep_woocommerce_order_search_endpoint to return any string that is not a valid seach endpoint.
3. Go to WooCommerce > Orders and enter a search query without submitting.
4. The search form should not disappear.
5. Check the browser console. An error starting with "ElasticPress: Unable to fetch results." should be shown with the original error message. In this example it is likely "HTTP 404".

Changelog Entry

Fixed - Fixed an issue where there WooCommerce Orders search field would disappear when Orders Autosuggest is receiving an unexpected response from ElasticPress.io.

Credits

Props @JakePT @anjulahettige

Checklist:

• I agree to follow this project's Code of Conduct.
• I have updated the documentation accordingly.
• I have added tests to cover my change.
• All new and existing tests pass.