code: public void registerLoaderIndicators(By... loaderIndicators) {
      	for(By locator : loaderIndicators) {
      		log.debug("Registered loader: " + locator);
      		this.expectedGlobalConditions.add(new ExpectedWebElementCondition(locator));
      	}
      }
docs: Register loader with the {@link ScenarioGlobals} so the different Selenium services can wait for them to be removed
  @param loaderIndicators