How Can I Retrieve the Exact Error Response Text from a jQuery $.ajax Error?

Retrieving jQuery $.ajax Error Response Text

In jQuery, it can be challenging to retrieve the exact error response text when an AJAX request fails. The default behavior only returns a general "error" message. However, we can access the response text by modifying our error handling function.

In the example provided, the PHP code sends a 500 Internal Server Error with the text "Gone to the beach". By default, jQuery's error function only displays "error" without any detailed information.

To obtain the response text, modify the error function as follows:

error: function(xhr, status, error) {
  var err = eval("(" + xhr.responseText + ")");
  alert(err.Message);
}

In this updated code:

• xhr represents the XMLHttpRequest object, which contains the response data.
• xhr.responseText retrieves the actual error response text.
• eval("(" xhr.responseText ")") parses the response text as JSON, assuming it's in that format.
• You can access specific error messages by querying the JSON object, e.g., err.Message would output "Gone to the beach" in this case.

By implementing this adjustment, jQuery can now effectively display the error response text, providing more informative feedback during error handling.

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