The reason for this is page.query is no longer available in newer version of Sveltekit and the value should be checked against something like $page.url.searcParams.
Navigate to the following page to see error
/join/access-denied/?id=UORrxpkPjy5Bv803QA5K
Describe the bug When
/join/access-deniedis called on a session which cannot be joined the page error's on line 19 (https://github.com/ThatConference/that.us/blob/9c5698696f71bec3d792d2f5cab14ec07bcc2f03/src/routes/join/access-denied/%2Bpage.svelte#L19).The reason for this is page.query is no longer available in newer version of Sveltekit and the value should be checked against something like
$page.url.searcParams.Navigate to the following page to see error /join/access-denied/?id=UORrxpkPjy5Bv803QA5K