append Hatena::Bookmark w/ canonical in new tab/window for Bookmarklet

append-hatenabookmark-canonical.let.js

// ==Bookmarklet==
// @name        +B!
// @namespace   http://noromanba.flavors.me
// @description append Hatena::Bookmark w/ canonical in new tab/window for Bookmarklet
// @include     http://*
// @include     https://*
// @version     2016.7.7.0
// @homepage    https://gist.github.com/noromanba/de465f65a50b171322431fadee4ce034
// @contributor dankogai    http://let.hatelabo.jp/dankogai/let/gYC-xpO_j7qpDw
// @contributor noromanba   http://let.hatelabo.jp/noromanba/let/gYC-y5_1hrbuWA
// @contributor noromanba   http://let.hatelabo.jp/noromanba/let/gYC-y9Ggo7jqKg (Fork of)
// @author      noromanba   http://noromanba.flavors.me
// @license     MIT License http://opensource.org/licenses/MIT
// ==/Bookmarklet==

// UserScript-like Metadata c.f.
// https://github.com/mrcoles/bookmarklet

// Devel
// https://gist.github.com/noromanba/de465f65a50b171322431fadee4ce034


// http://userjs.up.seesaa.net/js/bookmarklet.html
//*/
(() => {
    'use strict';
    'https://gist.github.com/noromanba/de465f65a50b171322431fadee4ce034';

    // canonical c.f.
    // http://let.hatelabo.jp/noromanba/let/hLHVzOTQjfYH
    // https://gist.github.com/noromanba/d730ccf3ae5e6916cd60
    const canonical = () => {
        return (document.querySelector('head meta[property="og:url"][content]') || {}).content ||
            (document.querySelector('head link[rel="canonical"][href]') || {}).href ||
            location.href;
    };

    window.open(`http://b.hatena.ne.jp/my/add.confirm?url=${canonical()}&title=${document.title}`, '_blank');
})();
/*/
javascript:(()=>{'https://gist.github.com/noromanba/de465f65a50b171322431fadee4ce034';const canonical=()=>{return(document.querySelector('head meta[property="og:url"][content]')||{}).content||(document.querySelector('head link[rel="canonical"][href]')||{}).href||location.href;};const canon=canonical();window.open(`http://b.hatena.ne.jp/my/add.confirm?url=${canon}&title=${document.title}`,'_blank');})();
//*/