$ npm install -g runinchrome

 $ sudo apt-get update; \
 $ sudo apt-get upgrade -y ;\
 $ sudo apt-get install chromium-browser -y ;\
 $ sudo npm update -g ;\
 $ sudo npm install -g chrome-launcher  chrome-remote-interface

new Date();

{
    "result": {
        "type": "object",
        "subtype": "date",
        "className": "Date",
        "description": "Tue Apr 24 2018 13:58:56 GMT+0900 (DST)",
        "objectId": "{\"injectedScriptId\":1,\"id\":1}"
    },
    "log": []
}

console.log("sample/console.js\t: hello");

{
    "result": {
        "type": "undefined"
    },
    "log": [
        "sample/console.js\t: hello"
    ]
}

Object.keys(window).toString();

{
    "result": {
        "type": "string",
        "value": "postMessage,blur,focus,close,frames,self,window,parent,opener,top,length,closed,location,document,origin,name,history,locationbar,menubar,personalbar,scrollbars,statusbar,toolbar,status,frameElement,navigator,applicationCache,customElements,external,screen,innerWidth,innerHeight,scrollX,pageXOffset,scrollY,pageYOffset,screenX,screenY,outerWidth,outerHeight,devicePixelRatio,clientInformation,screenLeft,screenTop,defaultStatus,defaultstatus,styleMedia,onanimationend,onanimationiteration,onanimationstart,onsearch,ontransitionend,onwebkitanimationend,onwebkitanimationiteration,onwebkitanimationstart,onwebkittransitionend,isSecureContext,onabort,onblur,oncancel,oncanplay,oncanplaythrough,onchange,onclick,onclose,oncontextmenu,oncuechange,ondblclick,ondrag,ondragend,ondragenter,ondragleave,ondragover,ondragstart,ondrop,ondurationchange,onemptied,onended,onerror,onfocus,oninput,oninvalid,onkeydown,onkeypress,onkeyup,onload,onloadeddata,onloadedmetadata,onloadstart,onmousedown,onmouseenter,onmouseleave,onmousemove,onmouseout,onmouseover,onmouseup,onmousewheel,onpause,onplay,onplaying,onprogress,onratechange,onreset,onresize,onscroll,onseeked,onseeking,onselect,onstalled,onsubmit,onsuspend,ontimeupdate,ontoggle,onvolumechange,onwaiting,onwheel,onauxclick,ongotpointercapture,onlostpointercapture,onpointerdown,onpointermove,onpointerup,onpointercancel,onpointerover,onpointerout,onpointerenter,onpointerleave,onafterprint,onbeforeprint,onbeforeunload,onhashchange,onlanguagechange,onmessage,onmessageerror,onoffline,ononline,onpagehide,onpageshow,onpopstate,onrejectionhandled,onstorage,onunhandledrejection,onunload,performance,stop,open,alert,confirm,prompt,print,requestAnimationFrame,cancelAnimationFrame,requestIdleCallback,cancelIdleCallback,captureEvents,releaseEvents,getComputedStyle,matchMedia,moveTo,moveBy,resizeTo,resizeBy,getSelection,find,webkitRequestAnimationFrame,webkitCancelAnimationFrame,fetch,btoa,atob,setTimeout,clearTimeout,setInterval,clearInterval,createImageBitmap,scroll,scrollTo,scrollBy,onappinstalled,onbeforeinstallprompt,crypto,ondevicemotion,ondeviceorientation,ondeviceorientationabsolute,indexedDB,webkitStorageInfo,sessionStorage,localStorage,visualViewport,speechSynthesis,webkitRequestFileSystem,webkitResolveLocalFileSystemURL,openDatabase"
    },
    "log": []
}