From within shiny I want to open a HTML page in a new browser tab. Here it is pointed out that I need JS for that task. Let\'s say I want to open the URL http://www.google.com
You shouldn't need anything more fancy than traditional, shiny-ified HTML:
a("test", href="http://google.com", target="_blank")
You're just looking to set the target attribute on the a tag which tells your browser where to open this new link you created.
target
a