Disabled publish button can be bypassed by Ctrl + Enter

[shuuji3]

Problem

This is a similar issue to #3085

When a post has more characters than the server limit, the "Publish" button is disabled and not clickable. But users can still try publishing the post by typing Ctrl + Enter, which always results in the error.

(after typing the above keyboard shortcut)

Expected

Elk should prevent sending a new post with too many characters when typing the keyboard shortcut and no error should be shown.

[userquin]

You can just add a protection in the submit handler checking the disabled, it is a form and so any "enter" in the inputs will fire form submit action.