FrameTriggerLoader
The FrameTriggerLoader component extends the FrameLoader component and inherits its APIs.
The enter() method of the component will be called by the parent FrameForm or FrameAnchor component when a request is started, the leave() method when the request has ended, be it successfully or with an error.
Global loader
If you need a loader which is displayed globally for every requests, have a look at the FrameLoader component.