gistfile1.txt

// Route:
<Route name="agent-detail" path=":name" handler={AgentProfile}>
  <Route name="agent-detail-tab" path=":tab" handler={AgentProfile} />
</Route>

// Handler function
handleTabToggle(key) {
  this.replaceWith('agent-detail-tab', {name: this.state.slug, tab: key});
},

// In render():
// TabbedArea from react-bootstrap:
<TabbedArea defaultActiveKey={this.props.params.tab} animation={false} className="AgentProfileTabs" onSelect={this.handleTabToggle}>
  // ...
</TabbedArea>