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XMLHttpRequest.open() - API | MDN
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XMLHttpRequest.open()

Baseline Widely available

This feature is well established and works across many devices and browser versions. Its been available across browsers since 2015 ..

XMLHttpRequest.open() .

: ( open()) abort().

In this article

XMLHttpRequest.open(method, url[, async[, user[, password]]])

method

HTTP- "GET", "POST", "PUT", "DELETE", . . URL, HTTP(S)-.

url

String URL .

async

true, , . false, send() , . true, . true, multipart true, .

: , . XHR . Worker.

user

: , ; null.

password

: , ; null.

Specification
XMLHttpRequest
# the-open()-method

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This page was last modified on 27 . 2026 . by MDN contributors.

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  1. XMLHttpRequest
    1. XMLHttpRequest()
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