Searching for Xmlhttprequest Support information? Find all needed info by using official links provided below.
https://stackoverflow.com/questions/16772568/xmlhttprequest-browser-support
Do those ActiveXObject objects support setRequestHeader? Is it platform dependent? EDIT: To answer my own question here, setRequestHeader was added in IE7. Thus, those ActiveXObjects do not support setRequestHeader, but they're not necessary in IE7 and above. – apsillers May 28 '13 at 20:28
https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest
Aug 28, 2019 · More recent browsers, including Firefox, also support listening to the XMLHttpRequest events via standard addEventListener() APIs in addition to setting on* properties to a handler function. Methods XMLHttpRequest.abort()
https://www.w3schools.com/xml/xml_http.asp
Old versions of Internet Explorer (IE5 and IE6) do not support the XMLHttpRequest object. To handle IE5 and IE6, check if the browser supports the XMLHttpRequest object, or else create an ActiveXObject:
https://javascript.info/xmlhttprequest
In modern web-development XMLHttpRequest is used for three reasons: Historical reasons: we need to support existing scripts with XMLHttpRequest. We need to support old browsers, and don’t want polyfills (e.g. to keep scripts tiny). We need something that fetch can’t do yet, e.g. to track upload progress. Does that sound familiar?
https://en.wikipedia.org/wiki/XMLHttpRequest
Level 2 consists of extended functionality to the XMLHttpRequest object, including, but not limited to, progress events, support for cross-site requests, and the handling of byte streams. At the end of 2011, the Level 2 specification was abandoned and absorbed into the original specification.
https://www.w3schools.com/js/js_ajax_http.asp
The XMLHttpRequest Object. All modern browsers support the XMLHttpRequest object.. The XMLHttpRequest object can be used to exchange data with a web server behind the scenes. This means that it is possible to update parts of a web page, without reloading the whole page.
https://support.mozilla.org/en-US/questions/987228
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https://www.tutorialspoint.com/ajax/ajax_browser_support.htm
If it doesn't work, then we can use a very outdated browser that doesn't support XMLHttpRequest, which also means it doesn't support AJAX. Most likely though, our variable ajaxRequest will now be set to whatever XMLHttpRequest standard the browser uses and we can start sending data to the server. The step-wise AJAX workflow is explained in the ...
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