How can I use an ajax get request to retrieve a css file from a webpage and then customize the default styles in my program?

Here is my current code snippet:

HTML:

<h1>Test Message</h1>

Default CSS:

h1{
   font-size: 24px;
}

Jquery:

$(document).ready(function(req, res){
    $.ajax({
        url:"example.com/test.css",
        type : "GET",
        crossDomain: true,
        contentType: "text/plain",
        dataType:"script",
        success:function(data){
             $("<style></style>").appendTo("head").html(data);
             //loading complete code here
    }
});  });

Uploaded test.css (on personal domain)

h1 {
    font-size: 36px;
}

I am currently facing an issue while trying to fetch test.css from my domain and overwrite its styles with the default ones. The error message I am receiving is "Unexpected error { " in test.css. How can I troubleshoot this error and successfully replace the existing code?

Answer №1

datatype is a key component used to specify the type of data that is expected back from the server (Documentation). In this scenario, you have specified it as 'script', causing JavaScript to interpret the server response as script when it should be treated as plain text since it will be included in your DOM code.

To resolve this issue, simply use:

 dataType:"text",

This adjustment should fix your problem.

Keep in mind that your browser may not always follow the rules from your downloaded CSS file, which can lead to conflicts. You can learn more about resolving conflicts by reading this article or this one

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