nhentai block popunders

Blocks popunder ads on nhentai

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==
// @name        nhentai block popunders
// @namespace   sayixz01icji0pgmio1f4ayoth4vpuj2
// @description Blocks popunder ads on nhentai
// @license     MIT License
// @match       *://*.nhentai.net/*
// @version     1.1
// @grant       none
// @run-at      document-start
// ==/UserScript==

/* jshint bitwise: true, curly: true, eqeqeq: true, esversion: 6,
funcscope: false, futurehostile: true, latedef: true, noarg: true,
nocomma: true, nonbsp: true, nonew: true, notypeof: false,
shadow: outer, singleGroups: true, strict: true, undef: true,
unused: true, varstmt: true, browser: true */

(function () {
	"use strict";
	
	const HOUR = 60 * 60 * 1000;

	// Next popunder in 2h
	function killPopunders() {
		const key = "popunder_state";

		let state;

		try {
			let savedState = localStorage.getItem(key);

			if (savedState) {
				state = JSON.parse(savedState);
			}
		} catch (ignore) {}

		if (!state) {
			state = {};
		}

		state.lock_until = Date.now() + 2 * HOUR;

		try {
			localStorage.setItem(key, JSON.stringify(state));
		} catch (ignore) {}
	}

	killPopunders();

	// Call this again every hour just to make sure
	setInterval(killPopunders, HOUR);
})();