Add chrome extension to Workspaces Web

Im trying to add an extension required by my SaaS provider. { "chromePolicies": { "ManagedBookmarks": { "value": [] }, "BookmarkBarEnabled": { "value": false }, "RestoreOnStartup": { "value": 4 }, "RestoreOnStartupURLs": { "value": [ "https://calibrus.brightpattern.com/agentdesktop" ] } }, "ExtensionSettings": { "*": { "installation_mode": "allowed" }, "mkaocfkkgijdkejknbfblgfbelppnfci": { "installation_mode": "force_installed", "update_url": "https://clients2.google.com/service/update2/crx" } } }