7.17: Modals service auto shown modal
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**Primary Actor**: User 
 
**Scope**: Ngx-bootstrap DEMO / BS version 3&4

**Goal**: Show user auto shown modal functionality

Main success scenario:
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1. User opens "Modals" demo page
2. User clicks on "Auto shown modal"  sub-menu
3. After click on "Render auto-shown modal" button, then modal popup is opened
4. When user closes modal popup by click on the cross, modal popup is removed from the DOM  

Variations:
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2*. User scrolls to "Auto shown modal"