How to change browser User-Agent Header with javaScript?

Question

Following code changes property printed (when accessed through javaScript) by browser console and not the actual Use-Agent string sent with the header.

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Answer 1

This is now possible to do, see: https://developer.mozilla.org/en-US/docs/Glossary/Forbidden_header_name You can use ‘ XMLHttpRequest.setRequestHeader(User-Agent, value)’