After upgrading Sitecore XM from version 8.2 Update 6 (aka 8.2.6) to version 9.2 Initial Release (aka 9.2.0), the editors / authors keep reporting that there is an error message “Value cannot be null – Parameter name: html” when inserting an external link for rich text through Sitecore experience editor. This problem is very annoying… Continue reading Sitecore 9.2 – “Value cannot be null – Parameter name: html” when inserting an external link into the text field through experience editor