Session doen't get data

@ahmadnasriya Hey, I think I found the issue.

Lightbox (works):

let test = await session.getItem("key");

The problem is at my page code:

This works:

session.setItem("key", "I am a String");
wixWindow.openLightbox("Formular");

This doesn’t work:

wixWindow.openLightbox("Formular");
session.setItem("key", "I am a String");

I think the lightbox doesn’t refresh the session data, after I opened it.

Here an example:
Case 1:

This is my session storage, before the lightbox opens. I can use the command

session.getItem("tryout") 

to get the value.

Case 2:

This is my session storage, after the lightbox has been opened. If I use the command

console.log(session.getItem("Upload1"));

I get null as value.

Is there any way to set an session item, after I opened the lightbox?