primevideo-autohide-nextupcard.user.js

// ==UserScript==
// @name         Amazon Prime Video auto hide the next up card
// @namespace    http://tampermonkey.net/
// @version      1.3.4
// @author       kPherox
// @match        https://www.amazon.co.jp/gp/video/*
// @match        https://www.amazon.co.jp/Amazon-Video/*
// @updateURL    https://gist.github.com/kphrx/2d7c91067c42453ec88a65e2202c2144/raw/primevideo-autohide-nextupcard.user.js
// @downloadURL  https://gist.github.com/kphrx/2d7c91067c42453ec88a65e2202c2144/raw/primevideo-autohide-nextupcard.user.js
// @grant        none
// ==/UserScript==

(function() {
  'use strict';

  // Your code here...
  const NextUpCard = {
    autohide () {
      return this.querySelector('.atvwebplayersdk-nextupcardhide-button')?.click();
    },
    autohideObserve (config = {childList: true, subtree: true}) {
      return new MutationObserver(() => {this.autohide()}).observe(this, config);
    },
  };
  Element.prototype.autohideObserve = Element.prototype.autohideObserve || NextUpCard.autohideObserve;
  Element.prototype.autohide = Element.prototype.autohide || NextUpCard.autohide;

  const nextUpCard = () => {
    return document.querySelector('.atvwebplayersdk-nextupcard-wrapper');
  };

  if (nextUpCard()?.autohideObserve()) {
    nextUpCard().autohide();
    return;
  }

  new MutationObserver((_, observer) => {
    if (nextUpCard()?.autohideObserve()) {
      observer.disconnect();
      nextUpCard().autohide();
      return;
    }
  }).observe(document, {childList: true, subtree: true});
})();