2.2.50 [HTML5:2014] Section 6.1.3.6.1 Runtime script errors in documents

C0067: When an option is set, script errors are reported to the user

The specification states:

 6.1.3.6.1 Runtime script errors in documents
  
     ... If the error is still not handled after this, then the error may be reported to 
     the user.

All document modes (All versions)

When the 'Display a notification about every script error' option is set, script errors are reported to the user.