Define XMLHttpRequest failure

[JayAgra]

Description

Attempting to resolve #31129 by specifying a failed request is a non-2XX response code.

Motivation

Just looking to clarify the confusion found by @maxpblum

Additional details

MDN response code docs https://developer.mozilla.org/en-US/docs/Web/HTTP/Status

Related issues and pull requests

Fixes #31129

[github-actions]

Preview URLs

• /en-US/docs/Web/API/XMLHttpRequest/responseText

(comment last updated: 2024-02-29 19:38:25)

[wbamberg]

It looks to me like null is never the value. I don't see a path here where null is returned.

And this code:

const xhr = new XMLHttpRequest();
xhr.open("GET", "https://httpbin.org/status/503");

// If specified, responseType must be empty string or "text"
xhr.responseType = "text";

xhr.onloadend = () => {
      console.log(xhr.status);
      console.log(xhr.responseText);
};

xhr.send();

...gives me:

503
<empty string>

[JayAgra]

You're absolutely correct, I'll remove the whole statement "or null if the request failed (non 2XX status)"

[wbamberg]

👍 thank you @JayAgra !