BUG: Exception when "<v:page.rootline>" is used and pageUid doesn't exist

[Oktopuce]

I have checked that the bug exists in the dev-development branch Yes.

I have checked that there are no already open issues or recently closed issues about this bug Yes.

Describe the bug When you're trying to get the root line of a page that doesn't exist, a PageNotFoundException exception is thrown:

(1/1) #1343589451 TYPO3\CMS\Core\Exception\Page\PageNotFoundException

To Reproduce Steps to reproduce the behavior:

1. Insert in a Fluid Template, a bloc like this:

   
   <v:page.rootline pageUid="{linkNotInDb}" as="theRootLine">
   ...
   </v:page.rootline>

with `{linkNotInDb}` having a page Uid that doesn't exist in DB.

2. Display the page with this code in frontend
3. See exception

**Expected behavior**
No `PageNotFoundException` exception should be thrown

**Additional context**
In file **vhs/Classes/Service/PageService.php**, method **getRootLine()** the call to  `$rootLineUtility->get()` must be surrounded by `try{} catch()`

try { /* @var RootlineUtility $rootLineUtility / $rootLineUtility = GeneralUtility::makeInstance(RootlineUtility::class, $pageUid); $rootline = $rootLineUtility->get(); } catch (PageNotFoundException $e) { return []; }

[NamelessCoder]

I would argue that in this case it's desirable to get an exception and undesirable to suppress all warning/error output when a non-existing page is passed. Otherwise you're just left clueless about why you get an empty root line.

I suggest using v:try around the root line extracting ViewHelper - this also lets you render an alternative when this exception is raised.

[NamelessCoder]

I made the decision to reject this - it's undesirable to have this API suppress warnings about unreadable pages. See https://github.com/FluidTYPO3/vhs/pull/1906#issuecomment-2236564156.