Backbone link hijacking

gistfile1.js

// All navigation that is relative should be passed through the navigate
// method, to be processed by the router. If the link has a `data-bypass`
// attribute, bypass the delegation completely.
$(document).on('click', 'a[href]:not([data-bypass])', function(ev) {
  // Get the absolute anchor href.
  var $link = $(ev.currentTarget);
  var href = { prop: $link.prop("href"), attr: $link.attr("href") };
  // Get the absolute root.
  var root = location.protocol + "//" + location.host + app.root;
  
  // Ensure the root is part of the anchor href, meaning it's relative.
  if (href.prop.slice(0, root.length) === root) {
    // Stop the default event to ensure the link will not cause a page
    // refresh.
    ev.preventDefault();
  
    // `Backbone.history.navigate` is sufficient for all Routers and will
    // trigger the correct events. The Router's internal `navigate` method
    // calls this anyways.  The fragment is sliced from the root.
    Backbone.history.navigate(href.attr, true);
  }
});