Language portlet doesn't work on IE11

• Type: Regression Bug
• Status: Verified
• Resolution: Unresolved
• Affects Version/s: 7.0.X
• Fix Version/s: None
• Component/s: Content Display Widgets > Language widget
• Labels:
  • QA-V
  • ee-7.0.x-only
• Story Points: 0.25
• Fix Priority: 3
• Last Working Version:
  7.0.0 DXP FP49
• Browsers:
  Internet Explorer 11

Steps to reproduce:

1. Startup the 7.0 DXP GA1+ liferay-fix-pack-de-50-7010-build1.zip.
2. Login in as Admin on IE11.
3. Add the language portlet to the page.
4. Try to change the language.

Expected Result:

Language changed.

Acutal Result:

Clicking language icon has no response.

Note:
It works on Chrome, Firefox.