That piece of code given above would theoretically do the thing you want yet browser won't allow doing so for sure. I tried to implement such a thing and every time a user made it to a required page the browser blocked the action, regardless of what it actually was: Chrome, Firefox, Edge. IE maybe doesn't do so but there are not so many persons keeping using it. More likely if your page will automatically redirect to the website where pdf is stored, e.g. this https://form-cd-401s.pdffiller.com/ it's actually an editor, paid one but the very thing is, when the user gets redirected to the page they immediately go to the preview of the document, unlike Dropbox and other cloud storages
