Correspondence option not available when not signed in (anonymous mode)

[Yurovoid]

URL in which this issue happened: Lishogi.org

Steps to reproduce:

1. Sign out if you're signed in
2. Click on "Create a Game"/"Play with a friend"/"Play with the computer".
3. Click on Time control drop down menu

I expected the drop down list to show two options:
Real time and correspondence

Instead, it showed me only one option: Real time

OS: Android 14
Browser & version: Chrome 132.0.6834.163

lv_0_20250130115651.mp4

[WandererXII]

That's the intended behaviour, if a player is signed out the game 'ownership' is being verified via cookie, but that's not very reliable for longer periods of time, more discussed here: #872

[Yurovoid]

I see. What can an anonymous player possible do to play correspondence?
P.S. Can you check the no time limit issue, I have a suggestion

[WandererXII]

Well, the obvious thing to do is create an account. Unlimited is handled in the same way as correspondence so anons also won't be able to play that.

[Yurovoid]

So while writing the code, did you intentionally want anons not be able to access the correspondence mode basically?

[WandererXII]

It's intentional, because without an account it's not possible to reliable make sure if this anon player is the one who should play the game.
Currently I think it's still possible for anon players to play correspondence -if registered user sends them a link to correspondence game, but this will be fixed in the next update.

[Yurovoid]

Okay, I see. So basically the idea is anons cannot be trusted with correspondence? Maybe because they may take a lot of time? But that issue can happen in real time too, can't it?