Allows enabling the feature NewBaseUrlInheritanceBehavior (obsolete)

OBSOLETE: This policy is obsolete and doesn't work after Microsoft Edge 135. NewBaseUrlInheritanceBehavior is a Microsoft Edge feature that causes about:blank and about:srcdoc frames to consistently inherit their base url values via snapshots of their initiator's base url. If you disable this policy, it prevents users or Microsoft Edge variations from enabling NewBaseUrlInheritanceBehavior, in case compatibility issues are discovered. If you enable or don't configure this policy, it allows enabling NewBaseUrlInheritanceBehavior. The policy became obsolete starting from Microsoft Edge version 136, but the NewBaseUrlInheritanceBehaviorAllowed feature was removed in Microsoft Edge version 123.