title: How to detect Command-Shift-Click for OS X in javascript?
body: <p>Normally, this combination opens a link as a new tab in Chrome, Firefox, and Safari for Macs. Is there any way to detect this? I know of jquery's <code>event.which</code>, but it gives a value of <code>1</code>, which is indistinguishable from a simple left click.</p>
  
  <p>The use case is with Backbone HTML5 pushstate, where I want to attach a <code>'click'</code> event handler that does not trigger a page load for normal navigation, yet still allow users to open a link in a new tab with a ⌘-⇧-click.</p>