Local style sheet behavior is different between platform UI and service portal for service catalog HTML type variableDescriptionLocal style sheet behavior is different between platform UI and service portal for service catalog HTML type variableSteps to Reproduce Create a local style sheet in content_css table, and copy the sysid of the record.2. Create an HTML type variable in Service Catalog, in the Default Value tag, config to apply the local style sheet as CSS, use the sysid.cssdbx of above local style sheet as "link href".Sample as below, you can click the "<>" source code button to refer the complete HTML codes.<p><link href="sysid.cssdbx" rel="stylesheet" type="text/css" /></p>3. Press OK to see the CSS is applied in Platform UI as attached platformUI.JPG, Save the variable.4. Navigate to the portal and open the catalog, check the HTML variable.- Expected behavior: Save behavior as platform UI.- Actual behavior: Different behavior from platform UI as attached serviceportal.JPG, the local style sheet is not applied. If you click the "<>" source code button on portal, you will see below CSS configuration is removed.<link href="sysid.cssdbx" rel="stylesheet" type="text/css" />WorkaroundUpgrade to Tokyo or above. This functionality is dependent on TinyMCE and TinyMCE has been upgraded as part of the Tokyo release. This issue got resolved from then.Related Problem: PRB1591301