Partial backport of LPS-94229 Tags in non-ASCII characters are not escaping with IE11

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.1.X
• Fix Version/s: 7.1.10 DXP FP21, 7.1.X
• Component/s: JS APIs and Utilities > Frontend JS Web API
• Labels:
  • QA-B
  • ee-ts
  • liferay-fixpack-dxp-21-7110
• Branch Version/s:
  7.1.x
• Backported to Branch:
  Committed
• Fix Priority: 1
• Git Pull Request: https://github.com/liferay/liferay-portal-ee/pull/21843

Steps to reproduce

1. Access Liferay from an IE11 browser
2. Go to Liferay DXP > Categorization > Tags
3. Create a new tag with non-ASCII characters, for example: お知らせ
4. Go to Contents > Web Content
5. Create a new Basic Web Content
6. Click on Select to add a new tag under Metadata section
7. Select the created tag and click Done in the popup window
8. Click the Select button again

Expected results:
Popup window displaying the tag elements and selections

Actual results:

HTTP status 400 – bad request (see 400.png)

Reproduced in
7.1.x 
IE11
Cannot reproduce in
Firefox on 7.1.x
Chrome on 7.1.x

7.2.x