Error "Uncaught TypeError: SCAYT.prototype.IO.callback851ig80bd is not a function" when multiple textarea converted to CKEditor

[Pritesh]

Steps to reproduce

1. Just check out fiddle here. ​https://jsfiddle.net/y6dfznL0/

Expected result

It shouldn't cause javascript error and Enable spell checker for all

Actual result

Spell checker doesn't work all other editors.

Other details (browser, OS, CKEditor version, installed plugins)

Working fine in IE and Edge

For Firefox,

Red underline appear for wrong spelling but right click doesn't give spelling suggestion.

For Chrome,

Doesn't work at all, you required to disable and enable it again.

[Jakub Ś]

I have simplified the test case file but still the problem can be reproduced.

Since error is being thrown in SCAYT script I have reported this issue to SCAYT team: ​https://github.com/WebSpellChecker/ckeditor-plugin-scayt/issues/106

@thecfguy - you may want to avoid creating editors with scayt turned on by default.