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What browser / browser engine do Office Add-ins use?

So I am trying to get started developing Office 365 Add-ins (previously Apps for Office), and I was wondering what browser or browser engine Office uses when it renders your app. I tried using JavaScript's navigator.appCodeName and navigator.appName, but due to the problem described here renders that method useless. What browser or engine do Office Add-ins use to render apps?

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James Parsons Avatar asked Aug 16 '15 20:08

James Parsons


1 Answers

It depends on where Office is being used. If it's on Windows Desktop, Office Add-ins use an Internet Explorer to load the hosted webpage in Office. For iOS, it will rely on the native WebView control. If on Office Online, it will use a sandboxed iframe, in which ever browser you open Office Online with.

If you're trying to determine the browser Office is running in, I believe sniffing the user agent string will work for you.

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Keyur Patel - MSFT Avatar answered Oct 10 '22 23:10

Keyur Patel - MSFT