Registry Viewer: Pass client property to server side calls

[kim-tsao]

Which area/kind this issue is related to?

/area registry

Issue Description

Since Woopra page events are not supported in our current set up, we can work around this by tracking the endpoint calls made from the registry viewer but in order to see the data, we will need the info to be passed into the header so things like userid/anonymousId, country, client, devfile/url, etc can be collected. Setting the anonymousId and client properties are under development so there is a dependency to this issue: #678

• Add an HTML header on the registry viewer API calls to identify the registry viewer so we can filter the events out.

[kim-tsao]

Once this change is made, we can remove the page events from the viewer

[kim-tsao]

Since Page events were converted to track events, we no longer need to pass most of the info from the client to server so the requirements have changed. Can we just pass in the client property? That way, we can distinguish which API calls are from the registry viewer and suppress telemetry collection on this since these will be dup calls