broken on NC 28 since v24

The NC build-in package is broken in the newest version 24.4.103. As well as the debian package 24.04-2. I had to revert back to the older debian version 23.05.10.1 in order to get it to work.
This is the log from the built-in package.
{
  "reqId": "UW1DO1gXzjImT4ZIi5S1",
  "level": 3,
  "time": "2024-04-23T14:40:04+00:00",
  "remoteAddr": "***.***.***.***",
  "user": "USER",
  "app": "richdocuments",
  "method": "PUT",
  "url": "/ocs/v2.php/apps/user_status/api/v1/heartbeat?format=json",
  "message": "Failed to fetch the Collabora capabilities endpoint: Client error: `GET https://****.****.***/apps/richdocumentscode/proxy.php?req=/hosting/capabilities` resulted in a `400 (Bad Request)` response",
  "userAgent": "Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/115.0",
  "version": "28.0.4.1",
  "exception": {
    "Exception": "GuzzleHttp\\Exception\\ClientException",
    "Message": "Client error: `GET https://****.****.***/apps/richdocumentscode/proxy.php?req=/hosting/capabilities` resulted in a `400 (Bad Request)` response",
    "Code": 400,
    "Trace": [
      {
        "file": "/var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/Middleware.php",
        "line": 69,
        "function": "create",
        "class": "GuzzleHttp\\Exception\\RequestException",
        "type": "::",
        "args": [
          "*** sensitive parameters replaced ***"
        ]
      },
      {
        "file": "/var/www/nextcloud/3rdparty/guzzlehttp/promises/src/Promise.php",
        "line": 204,
        "function": "GuzzleHttp\\{closure}",
        "class": "GuzzleHttp\\Middleware",
        "type": "::",
        "args": [
          "*** sensitive parameters replaced ***"
        ]
      },
      {
        "file": "/var/www/nextcloud/3rdparty/guzzlehttp/promises/src/Promise.php",
        "line": 153,
        "function": "callHandler",
        "class": "GuzzleHttp\\Promise\\Promise",
        "type": "::"
      },
      {
        "file": "/var/www/nextcloud/3rdparty/guzzlehttp/promises/src/TaskQueue.php",
        "line": 48,
        "function": "GuzzleHttp\\Promise\\{closure}",
        "class": "GuzzleHttp\\Promise\\Promise",
        "type": "::",
        "args": [
          "*** sensitive parameters replaced ***"
        ]
      },
      {
        "file": "/var/www/nextcloud/3rdparty/guzzlehttp/promises/src/Promise.php",
        "line": 248,
        "function": "run",
        "class": "GuzzleHttp\\Promise\\TaskQueue",
        "type": "->"
      },
      {
        "file": "/var/www/nextcloud/3rdparty/guzzlehttp/promises/src/Promise.php",
        "line": 224,
        "function": "invokeWaitFn",
        "class": "GuzzleHttp\\Promise\\Promise",
        "type": "->"
      },
      {
        "file": "/var/www/nextcloud/3rdparty/guzzlehttp/promises/src/Promise.php",
        "line": 269,
        "function": "waitIfPending",
        "class": "GuzzleHttp\\Promise\\Promise",
        "type": "->"
      },
      {
        "file": "/var/www/nextcloud/3rdparty/guzzlehttp/promises/src/Promise.php",
        "line": 226,
        "function": "invokeWaitList",
        "class": "GuzzleHttp\\Promise\\Promise",
        "type": "->"
      },
      {
        "file": "/var/www/nextcloud/3rdparty/guzzlehttp/promises/src/Promise.php",
        "line": 62,
        "function": "waitIfPending",
        "class": "GuzzleHttp\\Promise\\Promise",
        "type": "->"
      },
      {
        "file": "/var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/Client.php",
        "line": 187,
        "function": "wait",
        "class": "GuzzleHttp\\Promise\\Promise",
        "type": "->"
      },
      {
        "file": "/var/www/nextcloud/lib/private/Http/Client/Client.php",
        "line": 230,
        "function": "request",
        "class": "GuzzleHttp\\Client",
        "type": "->"
      },
      {
        "file": "/var/www/nextcloud/apps/richdocuments/lib/Service/CapabilitiesService.php",
        "line": 165,
        "function": "get",
        "class": "OC\\Http\\Client\\Client",
        "type": "->"
      },
      {
        "file": "/var/www/nextcloud/apps/richdocuments/lib/Service/CapabilitiesService.php",
        "line": 73,
        "function": "fetchFromRemote",
        "class": "OCA\\Richdocuments\\Service\\CapabilitiesService",
        "type": "->"
      },
      {
        "file": "/var/www/nextcloud/apps/richdocuments/lib/AppInfo/Application.php",
        "line": 96,
        "function": "getCapabilities",
        "class": "OCA\\Richdocuments\\Service\\CapabilitiesService",
        "type": "->"
      },
      {
        "file": "/var/www/nextcloud/lib/private/AppFramework/Bootstrap/FunctionInjector.php",
        "line": 45,
        "function": "OCA\\Richdocuments\\AppInfo\\{closure}",
        "class": "OCA\\Richdocuments\\AppInfo\\Application",
        "type": "->",
        "args": [
          "*** sensitive parameters replaced ***"
        ]
      },
      {
        "file": "/var/www/nextcloud/lib/private/AppFramework/Bootstrap/BootContext.php",
        "line": 50,
        "function": "injectFn",
        "class": "OC\\AppFramework\\Bootstrap\\FunctionInjector",
        "type": "->"
      },
      {
        "file": "/var/www/nextcloud/apps/richdocuments/lib/AppInfo/Application.php",
        "line": 95,
        "function": "injectFn",
        "class": "OC\\AppFramework\\Bootstrap\\BootContext",
        "type": "->"
      },
      {
        "file": "/var/www/nextcloud/lib/private/AppFramework/Bootstrap/Coordinator.php",
        "line": 200,
        "function": "boot",
        "class": "OCA\\Richdocuments\\AppInfo\\Application",
        "type": "->"
      },
      {
        "file": "/var/www/nextcloud/lib/private/App/AppManager.php",
        "line": 434,
        "function": "bootApp",
        "class": "OC\\AppFramework\\Bootstrap\\Coordinator",
        "type": "->"
      },
      {
        "file": "/var/www/nextcloud/lib/private/App/AppManager.php",
        "line": 213,
        "function": "loadApp",
        "class": "OC\\App\\AppManager",
        "type": "->"
      },
      {
        "file": "/var/www/nextcloud/lib/private/legacy/OC_App.php",
        "line": 125,
        "function": "loadApps",
        "class": "OC\\App\\AppManager",
        "type": "->"
      },
      {
        "file": "/var/www/nextcloud/ocs/v1.php",
        "line": 59,
        "function": "loadApps",
        "class": "OC_App",
        "type": "::"
      },
      {
        "file": "/var/www/nextcloud/ocs/v2.php",
        "line": 23,
        "args": [
          "/var/www/nextcloud/ocs/v1.php"
        ],
        "function": "require_once"
      }
    ],
    "File": "/var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/Exception/RequestException.php",
    "Line": 113,
    "message": "Failed to fetch the Collabora capabilities endpoint: Client error: `GET https://****.****.***/apps/richdocumentscode/proxy.php?req=/hosting/capabilities` resulted in a `400 (Bad Request)` response",
    "exception": [],
    "CustomMessage": "Failed to fetch the Collabora capabilities endpoint: Client error: `GET https://****.****.***/apps/richdocumentscode/proxy.php?req=/hosting/capabilities` resulted in a `400 (Bad Request)` response"
  },
  "id": "6628cccd3dfae"
}
CollaboraOnline / richdocumentscode

broken on NC 28 since v24 #267
