How can i find the user agent when show the Embed PDF API?

[Nivin31707188kxfw]

I'm working on editor WIX since we have a preview site and the iframe cannot find that it is in mobile view and still render as desktop view mode so how can I add the user agent that it's mobile view? 

[Raymond Camden]

Use navigator.userAgent. 

https://developer.mozilla.org/en-US/docs/Web/HTTP/Browser_detection_using_the_user_agent