harryzcy
harryzcy

Reputation: 27

Is file cached using XMLHttpRequest()

I'm using XMLHttpRequest() to load some js file. Is the file cached by the browser using the following code?

var xhr = new XMLHttpRequest();
xhr.open("get", "example.js", true);
xhr.onreadystatechange = function () {
    if (xhr.readyState == 4) {
        if (xhr.status >= 200 && xhr.status < 300 || xhr.status == 304) {
            var script = document.createElement("script");
            script.type = "text/javascript";
            script.text = xhr.responseText;
            document.body.appendChild(script);
        }
    }
};
xhr.send(null);

Upvotes: 0

Views: 805

Answers (1)

Quentin
Quentin

Reputation: 944064

Normal rules for caching apply when you use XMLHttpRequest.

The file may or may not be cached depending on the HTTP headers in the response.

Upvotes: 1

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