As stated in the official documentation of CKEditor one can fully disable the ACF by setting extraAllowedContent: true (expecting true to be a boolean). With the previous code it would set it to a string 'true'. This ends in telling CKEditor to allow <true> elements which is not what's intended.
As stated in the official documentation of CKEditor one can fully disable the ACF by setting
extraAllowedContent: true
(expectingtrue
to be a boolean). With the previous code it would set it to a string'true'
. This ends in telling CKEditor to allow<true>
elements which is not what's intended.