GM 4.0 workaround (partially tested)

.jshintrc

@@ -11,7 +11,8 @@
         "GM_xmlhttpRequest": true,
         "GM_getValue": true,
         "GM_setValue": true,
-        "unsafeWindow": true
+        "unsafeWindow": true,
+        "GM": true
     },
     "latedef": true,
     "nocomma": true,

.travis.yml

@@ -1,6 +1,6 @@
 language: node_js
 node_js:
-  - "4.5.0"
+  - "4.7.0"
 before_install: 
   - npm install -g grunt-cli
   - rvm install 2.4.1

Gruntfile.js

@@ -86,6 +86,7 @@ module.exports = function (grunt) {
                     banner: '<%= pkg.licenseBanner %>\n<%= pkg.userscriptBanner %>'
                 },
                 src: [
+                    'assets/js/gm4-shim.js',
                     'assets/js/constants.js',
                     'assets/generated/variables.pass2.js',
                     'assets/js/settings.js',

assets/js/gm4-shim.js

@@ -0,0 +1,61 @@
+/*
+Functions copied from https://gist.github.com/arantius/3123124
+The MIT License (MIT)
+
+Copyright (c) 2014 Anthony Lieuallen
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+*/
+
+/*jshint unused:false, esversion: 6, latedef: false*/
+
+if (typeof GM !== 'undefined' && typeof GM_getValue === 'undefined') {
+	if (typeof GM_info === 'undefined') { const GM_info = GM.info; }
+	var GM_xmlhttpRequest = GM.xmlHttpRequest;
+	var storagePrefix = GM.info.script.name.replace(/[^A-Z]*/g, '') + '-';
+
+	// The following functions all use local storage, and thus could be accessed
+	// by the host. They are also restricted to a single domain.
+
+	var GM_deleteValue = function(aKey) {
+		'use strict';
+
+		localStorage.removeItem(storagePrefix + aKey);
+	};
+
+	var GM_getValue = function(aKey, aDefault) {
+		'use strict';
+
+		var aValue = localStorage.getItem(storagePrefix + aKey);
+		if (null === aValue && 'undefined' !== typeof aDefault) { return aDefault; }
+		return aValue;
+	};
+
+	var GM_listValues = function() {
+		'use strict';
+
+		var prefixLen = storagePrefix.length;
+		var values = [];
+		for (var i = 0; i < localStorage.length; i++) {
+			var k = localStorage.key(i);
+			if (k.substr(0, prefixLen) === storagePrefix) {
+				values.push(k.substr(prefixLen));
+			}
+		}
+		return values;
+	};
+
+	var GM_setValue = function(aKey, aVal) {
+		'use strict';
+
+		localStorage.setItem(storagePrefix + aKey, aVal);
+	};
+}

package.json

@@ -1,6 +1,6 @@
 {
   "name": "questionable-content-spa",
-  "version": "0.5.1",
+  "version": "0.5.2",
   "author": "Alexander Krivács Schrøder",
   "devDependencies": {
     "grunt": "~1.0.1",
@@ -15,5 +15,5 @@
     "load-grunt-tasks": "~3.5"
   },
   "licenseBanner": "/* \n * Copyright (C) 2016 Alexander Krivács Schrøder <alexschrod@gmail.com>\n *\n * This program is free software: you can redistribute it and/or modify\n * it under the terms of the GNU General Public License as published by\n * the Free Software Foundation, either version 3 of the License, or\n * (at your option) any later version.\n *\n * This program is distributed in the hope that it will be useful,\n * but WITHOUT ANY WARRANTY; without even the implied warranty of\n * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n * GNU General Public License for more details.\n *\n * You should have received a copy of the GNU General Public License\n * along with this program.  If not, see <http://www.gnu.org/licenses/>.\n */\n",
-  "userscriptBanner": "// ==UserScript==\n// @name         Questionable Content Single-Page Application with Extra Features\n// @namespace    https://questionablextensions.net/\n// @version      <%= pkg.version %>\n// @author       Alexander Krivács Schrøder\n// @description  Converts questionablecontent.net into a single-page application and adds extra features, such as character, location and storyline navigation.\n// @homepage     https://questionablextensions.net/\n// @icon         https://questionablextensions.net/images/icon.png\n// @icon64       https://questionablextensions.net/images/icon64.png\n// @updateURL    https://questionablextensions.net/releases/qc-ext.latest.meta.js\n// @downloadURL  https://questionablextensions.net/releases/qc-ext.latest.user.js\n// @supportURL   https://github.com/Questionable-Content-Extensions/client/issues\n// @match        *://*.questionablecontent.net/\n// @match        *://*.questionablecontent.net/index.php\n// @match        *://*.questionablecontent.net/view.php*\n// @require      https://cdnjs.cloudflare.com/ajax/libs/jquery/2.2.1/jquery.js\n// @require      https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.6/js/bootstrap.min.js\n// @require      https://questionablextensions.net/scripts/angular.custom.js\n// @require      https://cdnjs.cloudflare.com/ajax/libs/angular-ui-router/0.2.18/angular-ui-router.min.js\n// @connect      questionablextensions.net\n// @connect      localhost\n// @grant        GM_getValue\n// @grant        GM_setValue\n// @grant        GM_xmlhttpRequest\n// @noframes\n// ==/UserScript==\n"
+  "userscriptBanner": "// ==UserScript==\n// @name         Questionable Content Single-Page Application with Extra Features\n// @namespace    https://questionablextensions.net/\n// @version      <%= pkg.version %>\n// @author       Alexander Krivács Schrøder\n// @description  Converts questionablecontent.net into a single-page application and adds extra features, such as character, location and storyline navigation.\n// @homepage     https://questionablextensions.net/\n// @icon         https://questionablextensions.net/images/icon.png\n// @icon64       https://questionablextensions.net/images/icon64.png\n// @updateURL    https://questionablextensions.net/releases/qc-ext.latest.meta.js\n// @downloadURL  https://questionablextensions.net/releases/qc-ext.latest.user.js\n// @supportURL   https://github.com/Questionable-Content-Extensions/client/issues\n// @match        *://*.questionablecontent.net/\n// @match        *://*.questionablecontent.net/index.php\n// @match        *://*.questionablecontent.net/view.php*\n// @require      https://cdnjs.cloudflare.com/ajax/libs/jquery/2.2.1/jquery.js\n// @require      https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.6/js/bootstrap.min.js\n// @require      https://questionablextensions.net/scripts/angular.custom.js\n// @require      https://cdnjs.cloudflare.com/ajax/libs/angular-ui-router/0.2.18/angular-ui-router.min.js\n// @connect      questionablextensions.net\n// @connect      localhost\n// @grant        GM_getValue\n// @grant        GM_setValue\n// @grant        GM_xmlhttpRequest\n// @grant        GM.xmlHttpRequest\n// @noframes\n// ==/UserScript==\n"
 }