GitHub: remove canonical

remove Github's canonical link

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @id             GitHub: remove canonical
// @name           GitHub: remove canonical
// @namespace      http://efcl.info
// @description    remove Github's canonical link
// @include        https://github.com/*/*
// @version 0.0.1.20140518104254
// ==/UserScript==

(function() {
    //const currentPath = unsafeWindow.GitHub.currentPath;// 現在地
    const repoName = unsafeWindow.GitHub.repoName;// レポジトリかどうか確認に使う
    const controllerName = unsafeWindow.GitHub.controllerName;// tree , commmit
    const currentRef = unsafeWindow.GitHub.currentRef;// master - Canonicalはmasterの時の変更されてるかな?
    if (!repoName) {
        return; // レポジトリじゃない
    }
    main();
    function checkCanonical(href) {
        // 状況をtreeに限定して、masterにいる時(原因のGithub)はcanonicalを書き換える。
        // 今は困った仕様でlocation.pathname !== href の状況なので、一致になったらこの子はいらない
        if (controllerName === "tree" && currentRef === "master"
                && location.pathname === href) {
            alert("Githubは何か変更したよ\n私はもういらない子かも");
        }
    }

    function getCanonical() {
        var link = document.querySelector('link[rel="canonical"]');
        if (link) {
            return link;
        }
    }

    function main() {
        var link = getCanonical();
        if (!link) {
            return;
        }
        // checkCanonical(link.href);// Githubが変更してくれるといいね
        link.parentNode.removeChild(link);
    }
})();