I am writing a plugin for extending std doi plugin, and I have a problem that I can’t solve for several hours.
I always get 404 error message when I try to use a custom handler.
I use LinkAction.tpl https://prnt.sc/qoqlun => register callBack handler https://prnt.sc/qoqmj7 => create handler https://prnt.sc/qoqnxj and got 404 error https://prnt.sc/qoqlh7
Where and what I should register to force to work this feature.
All hope is only for you =)