Stacked modals aren't aligned properly after closing the last one

• Type: Regression Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.0.0 M3
• Fix Version/s: 7.0.0 M4
• Component/s: Frontend Infrastructure
• Labels:
  • QA-AUTOMATION
• Story Points: 11
• Fix Priority: 5
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/22957

Currently, in portal, if a modal that loads a uri (iframe) launches another modal that also loads a uri (iframe), when closing the last one, the first one doesn't get re-aligned correctly.

Steps to reproduce:

Method 1:

1. Add a new web content.
2. Add a Web Content Display portlet to a page.
3. Select the new created web content to display.

Expected result: The webcontent is displayed.
Actual result: Fail to display the new created web content. See screenshot.

Method 2:

1. Add Media Gallery portlet
2. Open portlet configuration
3. Under Display Templates, click "Manage Display Templates for Liferay"
4. Close Application Display Templates frame

Expected result: Closing the frame returns user to portlet configuration frame centered on screen
Actual result: Closing the frame returns user to portlet configuration frame on the top of the screen