Demo

javascript:!function()%7Bvar a%3D"dlFeatureToggles",b%3Dwindow.localStorage.getItem(a),c%3Db%3FJSON.parse(b):%5B%5D,d%3Dwindow.prompt("Comma separated list of enabled feature flags (cancel will remove all flags):",c.join(", "))%7C%7C""%3Bwindow.localStorage.setItem(a,JSON.stringify(d.split(",").map(function(a)%7Breturn a.trim()%7D).filter(function(a)%7Breturn!!a%7D))),setTimeout(function()%7Blocation.reload()%7D,0)%7D()%3B

localStorage.setItem('hostviewDefaults', JSON.stringify({ groupBy: ['container:com.docker.compose.service'], colorBy: 'mem' }))