I know I can wrap in a try / catch but the goal here is to display a useful error in cases where one was not expected..(programming error)
A basic lightning component displayed in a VF page using the standard app and component.
The only thing on the component is a lightning:spinner
. The component has an init handler and the sole job of the init JS is to hide the spinner.
<aura:component description="test">
<aura:handler name="init" value="{!this}" action="{!c.doInit}"/>
<lightning:spinner variant="brand" aura:id="test_spinner"/>
</aura:component>
The controller
({
doInit : function(component,event,helper){
console.log('init');
helper.donothing(); //This does not exist and causes an error
$A.util.addClass(component.find("test_spinner"),'slds-hide');
}
})
Now when this runs it causes a framework error. The problem is that the user sees nothing. The spinner does not get hidden and the page just stalls...
Is there any way to display a message to the user instead of the entire component just stalling?
For some reason I seem to recall a component that could be used to display framework errors but I cannot seem to find it or I am just remembering incorrectly