In what situations can the use of the GET method in the HTTP protocol be limited or undesirable?

The GET method in HTTP is intended for retrieving data and should be idempotent and safe, meaning it does not change the server's state. Its use may be limited or undesirable in the following situations:

• Transmission of confidential data: GET request parameters are transmitted in the URL, which can be saved in logs, browser history, or proxies, making it unsafe for passwords or other secrets.
• Large volume of data: URLs have length limitations (usually around 2000 characters), so GET is not suitable for transmitting large amounts of data.
• Changing state: If a request is supposed to change the state on the server (e.g., create or update a resource), POST, PUT, or other methods should be used instead of GET.
• Caching: GET requests can be cached by browsers and proxies, which is sometimes undesirable for dynamic data.

Example: for submitting a form with a password, it is better to use POST so that the data does not appear in the URL.