Headless API returns BAD REQUEST when a friendlyURL contains a forward slash

Issue

• The Headless API returns "HTTP Status 400 - Bad Request" when a / is included in a friendly URL
  
  The error can be thrown using these steps:
  
  - Login to Liferay as Admin
  - Go to the headless API page: http://localhost:8080/o/api
  - Locate getSiteSitePage API
  - Fill the parameters of siteId, and friendlyUrlPath with "aaa/bbb"
  - Press the Execute button
  
  Output
  
  
  

Environment

• DXP 7.4 U58

Resolution

• At the time of writing (Mar 2023), the behavior is being addressed by Liferay on ticket LPS-175904. Please look out for this fix in a future product release