Django CSRF Check Failing with Ajax Post Request

As outlined in Django's documentation, enabling CSRF protection helps prevent malicious cross-site request attacks. By following the instructions, you attempted to implement the CSRF check with Ajax posting but are still encountering rejection.

To troubleshoot this issue, consider the following steps:

1. Verify Token Existence:
   Ensure that the JavaScript code is fetching the CSRF token and storing it in a variable called csrftoken. This token should be present before setting the header:

   $.post("/memorize/", data, function (result) { ... });
   
   var csrftoken = getCookie('csrftoken');
   xhr.setRequestHeader("X-CSRFToken", csrftoken);

2. Ensure Token Use:
   After obtaining the token, explicitly set it in the header for the Ajax request using setRequestHeader.
3. Check Response Body:
   Inspect the response body from Django to see if it explicitly mentions a missing or invalid CSRF token.

4. Alternative Method (Using Data Body):
   Instead of setting the header, you can embed the CSRF token in the data body of the Ajax request as follows:

   $.ajax({
       data: {
           csrfmiddlewaretoken: '{{ csrf_token }}',
           ...  // Other data
       },
   });

5. Enable Debugging:
   Turn on Django's CSRF debugging mode by adding DEBUG = True to the settings. This may provide additional error messages or hints in the response body.

Once these steps have been completed, re-submit the Ajax request to see if the CSRF check passes successfully.