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Quite often we receive requests from our clients asking how to disable proofreading option in the source mode of a rich text editor and keep it enabled only in the WYSIWYG mode. In general, for such cases we offer a special option disableAutoSearchIn of of WProofreader that allows disabling it for certain cases (class, id, data attribute name and HTML elements).
Disabling WProofreader in Source Mode of CKEditor 4
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