Showcasing special characters in JavaScript

I am encountering an issue with displaying accented characters in my application; instead of showing ó, it is displaying . The string originates from a JSON file fetched from a server. Below are the technical specifics:

JSON: (This is the data retrieved from the server)
Note the 3rd key "Relación" where the letter "o" has an accent.

[
    {
        "key": "Canales"
    },
    {
        "key": "Productos"
    },
    {
        "key": "Relación con el ejecutivo"      
    }
]

Ajax (Below is the code used to fetch the data)
I have already included charset=utf-8 as recommended by most responses

$.ajax({
    url: url,
    type: "GET",
    dataType: "json",
    contentType: "application/json; charset=utf-8",
    success: function(data){
         alert("client test: " + JSON.stringify(data));
    }
}

Alert: (The displayed symbol should be -> ó, but it currently shows a box symbol)

Answer №1

Expanding on the suggestions provided by @georg, I found a solution to the issue at hand:

Given that modifying the server-side scripts was not an option, I made changes to my code on the client side.
Specifically, I altered the charset in my ajax request to ISO-8859-1. However, since the default charset for ajax is utf-8, I needed to manually set the charset using $.ajax.beforeSend:

$.ajax({
    url: url,
    type: "GET",
    dataType: "json",
    contentType: "application/json; charset=iso-8859-1",
    success: function(response){
         alert("client test: " + JSON.stringify(response));
    },
    beforeSend: function(jqXHR) {
        jqXHR.overrideMimeType('application/json;charset=iso-8859-1');
    }
}

To delve deeper into this topic and understand how to override the charset, refer to the following question thread: Jquery ignores encoding ISO-8859-1

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