Telemetry: Current page was sometimes not tracked when reloading the current page

Description of problem:
We want to understand our users, but the first page the user opens wasn't tracked.

Version-Release number of selected component (if applicable):
Saw this on Dev Sandbox with 4.10 and 4.11 with enabled telemetry

How reproducible:
Sometimes! Looks like a race condition and requires active telemetry

Steps to Reproduce:
1. Open the browser network inspector and filter for segment
2. Open the developer console

Actual results:
1-2 identity event is send, but no page event

Expected results:
At least one identity event and at least one page event should be send to segment

Additional info: