Duplicate images in Wiki and Message Boards in IE11

• Type: Bug
• Status: Verified
• Resolution: Unresolved
• Affects Version/s: 7.0.X, 7.1.X, 7.3.X
• Fix Version/s: None
• Component/s: Alloy Editor, ~ [Archived] Frontend Infrastructure
• Labels:
  • ee-7.3.x-only
  • frontend
• Fix Priority: 2
• Browsers:
  Internet Explorer 11

Reproduction Steps:
1) Start Liferay and test in IE11
2) Go to Message Boards in Control Panel
3) Add a new Thread
4) Click on the editor, click on the plus size and add an image

Expected behavior:
The image is added once in the editor

Current behavior:
The image is added twice in the editor. This will occur in WIKI as well.