This is the first result on Google I had when searching for this issue, but there is a better way. I would like to point others to a better fix here: Video in Knowledge Base keeps disappearing

Here: ('active=true^assignment_group=ba1859496f000200c0c334afae3ee406^sys_class_name=incident^short_descriptionLIKEPercent Used Space is too high::AlertKey^sys_created_on>=javascript:gs.dateGenerate('2019-04-24','10:00:00')'); change to double quotes...