Fix getInitConfiguration() behaviour

[piotr-oles]

Motivation

Context: Synthetics Profiler doesn't tag profiles with correct service tag

I need DD_RUM.getInitConfiguration() to return init configuration even if it's inside synthetic test. Currently, when I call DD_RUM.getInitConfiguration() inside synthetic test, it returns undefined, because initRum() function is interrupted by:

    if (ignoreInitIfSyntheticsWillInjectRum && willSyntheticsInjectRum()) {
      return
    }

which prevents from this code to be executed:

    getInitConfigurationStrategy = () => deepClone<InitConfiguration>(initConfiguration)

This breaks profile tagging, as we can't infer service name (and because of that, we can't resolve source maps)

I think that getInitConfiguration() should return init configuration even if init process was not successful (as this function is not called getValidInitConfiguration() or getInitConfigurationIfInitWasSuccessful())

Changes

Update RUM and Logs API - getInitConfiguration() will return init configuration regardless of init process outcome.

Testing

• Local
• Staging
• Unit
• End to end

---

I have gone over the contributing documentation.

[bcaudan]

LGTM