On Rome, light blue colored vertical line is appearing on click of portal header menu when using CSM Unified Portal Header Menu Widget


Description

Build information:
Affected - Rome patch 1 hotfix 1
Not Affect - Paris patch 10
Chrome 95.0.4638.54


Issue Description:
On Rome, light blue colored vertical line is appearing on click of portal header menu when using CSM Unified Portal Header Menu Widget.
When opening the portal, the header menu looks normal. But on clicking the header menu Page type or Catalog Category - a blue vertical line or 2 blue dots appears near the start of the label. It also increases the height of the header.

Clicking elsewhere will make the line or blue dots disappear

Business Impact: Unexpected visual for user

Steps to Reproduce

<Include pre-requisites when reproducing the issue on a default version demo instance. (e.g. activate a certain plugin)>
1. Log on to a Rome release instance
2. Ensure Com.snc.csm_unified_theme (Customer Service Management unified theme) is installed
3. Open SP service portal in Service Portals.
4. Open the record of the main menu selected for the portal (SP Header Menu)
5. Change the "Instance with Menu" - "SP Header Menu"'s widget to "CSM Unified Portal Header Menu Widget" and save
6. Add 2 menu item:
- " My items" of type Page and any page
- "Hel & support" of tye Catalog Category with page requests
7. Go back to the portal and "try it" or open [instance].service-now.com/sp
8. Click on each of the above header menu items - "My items" and "Help & Support"

Expected behavior:
On click of either menu item - no additional elements except for any menu drop down are added to the screen

Actual behavior:
2 dots are added on My Items and Help and Support.

Workaround

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Related Problem: PRB1535358