xss-lock allowing suspend despite failing to grab

[jrmd54]

Hello

I am using i3 and have the following configuration:

exec_always --no-startup-id xss-lock --transfer-sleep-lock -- xsecurelock
bindsym $alt+Shift+Delete exec --no-startup-id systemctl suspend

It "works" in the sense that using my shortcut indeed runs xsecurelock before calling suspend.

However if I do something as simple as holding the left button of my mouse while using the shortcut, the pc is put to suspend, but when resuming, xsecurelock is not runing and anyone can access my desktop.

I thought that using --transfer-sleep-lock specifically handled this issue and cancelled suspend if xsecurelock was not able to grab the pointer.

My version of xss-lock is 0.3.0 and my version of xsecurelock is 1.9.0

Is there something wrong with my configuration?
As it is it is not secure at all...