Unsettled function bug in hook function

[meaz]

Describe the bug
In Firefox console, I see this

UNSETTLED FUNCTION BUG IN HOOK FUNCTION (plugin: ep_table_of_contents, function name: ep_table_of_contents/static/js/aceEditEvent:aceEditEvent, hook: aceEditEvent): The hook function neither called the callback nor returned a non-undefined value. This is prohibited because it will result in freezes when a future version of Etherpad updates the hook to support asynchronous behavior.

and also :
UNSETTLED FUNCTION BUG IN HOOK FUNCTION (plugin: ep_real_time_chat, function name: ep_real_time_chat/static/js/main:postAceInit, hook: aceInitialized): The hook function neither called the callback nor returned a non-undefined value. This is prohibited because it will result in freezes when a future version of Etherpad updates the hook to support asynchronous behavior. uM7pKcOTJwcqbKYUL64m line 24 > scriptElement line 25 > Function:67:1793

I'm not too sure what it means and if I have to disable those plugins... Pad seems to load without problem otherwise.

Server (please complete the following information):

• Etherpad version: 1.8.10
• OS: Debian buster
• Node.js version (node --version): v14.16.0
• npm version (npm --version): 6.14.11

Desktop (please complete the following information):

• OS: Debian buster
• Browser: firefox
• Version [e.g. 22]: esr 78.8

[rhansen]

I opened bugs against the plugins. You don't have to disable the plugins yet; those errors are warning about freezes that could happen with a future version of Etherpad if the bugs aren't fixed before then.

Thanks for reporting.