Visit Google Map with Japanese

google-map-with-japanese.js

// ==UserScript==
// @name         Visit Google Map with Japanese
// @namespace    https://gist.github.com/caliburn1994/ef993f676111627b9023f02d191c5d13
// @version      0.2
// @description  Visit Google Map with Japanese
// @author       caliburn1994
// @match        https://*.google.com/maps*
// @exclude      https://*.google.com/maps*hl=ja*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=google.com
// @updateURL    https://gist.githubusercontent.com/caliburn1994/ef993f676111627b9023f02d191c5d13/raw/google-map-with-japanese.js
// @downloadURL  https://gist.githubusercontent.com/caliburn1994/ef993f676111627b9023f02d191c5d13/raw/google-map-with-japanese.js
// @grant        none
// ==/UserScript==

(function() {
    console.log('Redirecting Google Map')
    var url = new URL(window.location.href)
    url.searchParams.set('hl', 'ja');
    window.location.replace(url.href);
})();