In the 'then' function of our AJAX request in script.js, I've added a condition to check for a response status of 429 which indicates too many requests. If this status is encountered, an error message will be shown prompting the user to refresh their CAPTCHA. This is to prevent the user from making excessive attempts unbeknownst to them.
A conditional block of code was added to handle the case when 'captcha_key' is not defined. This is to manage the scenario when captcha verification fails, providing an error message to the user and thus improving user experience.
In the case where the data.errors object does not have any explicit errors, the diff adds a fallback. The resulting error message displayed will then be the general data message. This prevents situations where the user receives an empty error message.
