Failed /api/jsonws/ calls when using portal.proxy.path

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: Master
• Fix Version/s: 7.3.10 DXP U24, 7.3.X, 7.4.3.36 CE GA36, 7.4.3.37 CE GA37, Master
• Component/s: Web Services > JSON WS
• Labels:
  • 7.3.10-u24
  • 7.4.13-u35
  • backend_test
  • ee-ts
• Branch Version/s:
  7.3.x
• Backported to Branch:
  Committed
• Story Points: 5
• Fix Priority: 3
• Git Pull Request: https://github.com/liferay-appsec/liferay-portal/pull/759
• Bug Type: Regression Bug

Description
Liferay JSON Web Services API calls no longer work, when the portal property: portal.proxy.path is configured.

Steps to reproduce

1. Configure a reverse proxy (e.g. using Apache)

   <VirtualHost *:80>
     ServerName localhost
     ProxyPreserveHost On
     <location /portal>
       ProxyPass "http://localhost:8080"
       ProxyPassReverse "http://localhost:8080"
     </location>
   </VirtualHost>
   

2. Prepare a clean bundle with the following portal property:

   portal.proxy.path=/portal
   
   web.server.http.port=80
   

3. Start Liferay
4. Navigate to http://localhost/portal
   • Login as admin user
5. Navigate to http://localhost/portal/api/jsonws
   1. Click get-companies under COMPANY
   2. Click Invoke

Expected results
Result displays an array with the default company as an entry, example:

[
  {
    "active": true,
    "companyId": "20097",
    "createDate": 1656362181077,
    "homeURL": "",
    "industry": "",
    "legalId": "",
    "legalName": "",
    "legalType": "",
    "logoId": "0",
    "maxUsers": 0,
    "modifiedDate": 1656362181077,
    "mvccVersion": "1",
    "mx": "liferay.com",
    "name": "Liferay",
    "sicCode": "",
    "size": "",
    "system": false,
    "tickerSymbol": "",
    "type": "",
    "userId": "0",
    "userName": "",
    "webId": "liferay.com"
  }
] 

Actual results
Result displays empty results and a 403 is thrown for the invoked request, example:

{}