The javascript list is formed from JSON Data upon Ajax retrieval in Safari

I recently stumbled upon something interesting. Here is a portion of JS code that I have:

$.ajax({
    type: 'POST',
    url: '/requestHandle',
    data: data,
    success: function(data) {
        var places = JSON.parse(data);
        // do something
    },
    error: function(data) {
        // do something else
    }
});

When the backend sends back data in JSON format, var places = JSON.parse(data); works flawlessly in Chrome and Firefox by converting the JSON data into a JavaScript list. However, in Safari, this line causes an error because the data is already in JS list format. Changing it to just var places = data resolves the issue. I'm curious as to why there's an automatic conversion taking place?

Thank you in advance.

Answer №1

To ensure that jQuery always receives the response as a JavaScript object, specify that the data type is JSON in your AJAX request.

$.ajax({
    type: 'POST',
    url: '/handleRequest',
    data: requestData,
    success: function(responseObj) {

        // do something with the response object
    },
    error: function(errorData) {
        // handle errors
    },
    dataType: 'json'  // specifies that the response will be pre-parsed as JSON 
});

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