I have a Lightning Component PortalHeader

PortalHeader.cmp looks like this:

<aura:component controller="currentUserInfoCtrl" description="portalHeader" implements="forceCommunity:availableForAllPageTypes" access="global">
<aura:attribute name="userInfo" type="user"></aura:attribute>
<aura:handler name="init" value="{!this}" action="{!c.doInit}"/>

<div id="ui-wrapper">
    <div class="container">


doInit: function(component, event, helper) {

    var action = component.get("c.fetchUser");
    window.addEventListener("message", function(event) {

and I am getting an error:

doInit is not defined throws at https://.../AP/s/components/c/PortalHeader.js:30:17

Please note:

  1. doInit is right there in the PortalHeaderController.js
  2. There is no PortalHeader.js file there is PortalHeaderController.js and PortalHeaderHelper.js

Any idea of what is going on here and why am I getting this error?

Thank you very much!

  • This could be a result of Salesforce caching. If this is in a sandbox, go to Setup -> Session Settings and search for a setting named "Enable secure and persistent browser caching to improve performance" and turn it off. If it's a production instance, just mash Ctrl+Shift+R until it goes away. Jul 24, 2021 at 2:20
  • @DrewKennedy No that's not it. it happens on several machines to several users over multiple days. Thanks anyway!
    – shlasasha
    Jul 26, 2021 at 13:30
  • Can you share the full file for PortalHeader.js Jul 26, 2021 at 14:42
  • This is an example of why chopping out too much code for an example can sometimes obscure the problem. That second doInit call wasn't in the original example :) Jul 27, 2021 at 18:47

1 Answer 1


Problem was doInit is called within itself. Trick is to move all the initialization to the Helper file And then call it once from doInit and again from the event

    doInit : function(component, event, helper) {

        window.addEventListener("message", function(event) {

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