Hello everyone!
I have an issue with lightning:container. It throws "Failed to load resource: the server responded with a status of 403 (Forbidden)" error upon loading and refuses to load.
I address the resource in the code like so: 

<lightning:container src="{!$Resource.namespace__resourceName + '/index.html'}"/>

The issue seem to reproduce mostly when I'm logged under a user with reduced permissions. However, the issue reproduces when I'm logged under a user with System Administrator profile as well.
Any help would be greatly appreciated!
 

Hi,
 I need to display lookup field while creating a record from Lightning component so that user can select associated account lookup while creating contact record.