title: Close a different browser tab with Javascript
body: <p>Is it possible to close a <em>different</em> browser tab than the active one from another HTML page with Javascript?</p>
  
  <p>I ask because I am building a virtual assistant in the browser. This assistant will open new tabs, at which point the current tab would be something like a Google search. If I could ask the virtual assistant to close this current tab, I would be returned to the virtual assistant browser window.</p>