End-of-life for Web Spell Checker (WSC) dialog plugin for CKEditor 4
This is a solution that the client accepted so thought I’d share –
Enable the browser spell check functionality.
Administer &gt; Customize Data and Screens &gt; Display Preferences &gt; Configure CKEditor
By default, native browser spell check functionality is disabled in the editor. Use the config.disableNativeSpellChecker configuration option to enable it:
config.disableNativeSpellChecker = false;


With this addition to the CKEditor configuration you should be able to see the spelling corrections underlined in your editor content.