Multiplex AJAX calls
Summary: Fixes T5344. Essentially, we only make the AJAX request to /notification/individual/ if we are the leader tab (i.e. only one tab will make this request). Once a response has been received from the server (containing the contents of the notification), we broadcast the message contents back to all other tabs for rendering.
Test Plan:
Opened two tabs on /notification/status/ and clicked "Send Test Notification".
Before
tail -f /var/log/phabricator-access.log | grep /notification/individual/
[Tue, 13 Jan 2015 20:10:37 +1100] 17033 phabricator 10.0.0.1 josh PhabricatorNotificationIndividualController - /notification/individual/-200 236036 [Tue, 13 Jan 2015 20:10:37 +1100] 17657 phabricator 10.0.0.1 josh PhabricatorNotificationIndividualController - /notification/individual/-200 24130
After
tail -f /var/log/phabricator-access.log | grep /notification/individual/
[Tue, 13 Jan 2015 20:11:15 +1100] 17657 phabricator 10.0.0.1 josh PhabricatorNotificationIndividualController - /notification/individual/-200 180217
Reviewers: Blessed Reviewers, epriestley
Reviewed By: Blessed Reviewers, epriestley
Subscribers: Korvin, epriestley
Maniphest Tasks: T5344
Differential Revision: https://secure.phabricator.com/D11360