LPS-39282-test-4

Hi @shuyangzhou, this branch contains the applied logic of nate first pull request. We are trying to scope the dockbar to render as little as possible when the user is not signed in for performance. My prediction is that this branch will have a better total session count than your test#1 branch, and comparable to test#2 and test#3. As soon as you have metrics, i will update the charts in the email.