It doesn't appear this is possible, looking at the Mozilla docs, but I came upon this answer which doesn't make sense to me. The reason I want to do this is that I want to trick Bing into thinking it is being accessed by a mobile device/browser.
1 Answers
You can't modify the UserAgent property using JavaScript.
From Mozilla Docs
The Navigator.userAgent read-only property returns the user agent string for the current browser.
It is possible to change the User-Agent header for a XHR request but it doesn't work for the Chrome browser.
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