API endpoint token auth works in app without pages - but not in pages

Hi there,

I found a strange behavior in apps when calling endpoints in PSU.

Summary
Token authentication works perfectly if the app does not have pages and just -Content {} which includes Invoke-WebRequest.
As soon as you move the working structure out of -Content {} from an app into Pages it doesn't work anymore:

Details
I have a working element as
if (-not $UserSuggestions){
$RequestParameter = $RequestParameterDefault
$RequestParameter["Method"] = "Get"
$RequestParameter["Uri"] = "https://${hostName}:8443/ad/user"
$Result = (Invoke-RestMethod @RequestParameter)
$UserSuggestions = @()
if ($Result.Data) {
foreach ($user in $Result.data.GetEnumerator() ) {
# using objectGUID as value as UPN can be empty
$UserSuggestions += (New-UDAutocompleteOption -Name "$($user.name) `($($user.userPrincipalName)`)" -Value $($user.objectGUID))
}
Show-UDToast -Message "User data loaded successfully" -MessageColor "green" -BackgroundColor "lightgreen"
}
else {
Show-UDToast -Message "Failed to load user data" -MessageColor "darkred" -BackgroundColor "lightred"
}
} else {
Show-UDToast -Message "User data already loaded" -MessageColor "darkblue" -BackgroundColor "lightblue"
}
basically calling `/ad/user` endpoint on the PSU server.

This works if it is integrated in:
New-UDApp -Title "User Management" -Content { ... }

I then moved it into a subpage which I declared via
New-UDPage -Url "/user-offboarding" -Name "User Offboarding" -Content {

and integrated in the app via
$Pages = @()
$Pages += Get-UDPage -Name "User Offboarding"
New-UDApp -Title "User Management" -Pages $Pages

Actual Behavior
Invoke-WebRequest creates 401 unauthorized error when opening the page via menu.
It works if no pages are created and just a single page app exists.

Expected Behavior
Token authentication should work as well on all subpages.

Is that a bug I found or really expected behavior?
How to resolve this issue?