Violent Monkey script that removes closed captions from subtitles on Netflix.

nocc.js

// ==UserScript==
// @name No closed captions
// @namespace Violentmonkey Scripts
// @match https://www.netflix.com/watch/*
// @grant none
// ==/UserScript==

let lastContainer = null

function removeClosedCaptions() {
  const els = document.getElementsByClassName('player-timedtext-text-container')
  
  if (els.length === 1) {
    const el = els[0]
  
    if (el != lastContainer && el.children != null) {
      lastContainer = el
      
      el.parentElement.style.display = 'flex'
      el.parentElement.style.justifyContent = 'center'
      el.style.left = 'auto'

      for (const e of el.children) {
        for (const n of e.childNodes)
          if (n.nodeValue)
            n.nodeValue = n.nodeValue.replace(/ *-? *\[.+?\] */g, '')
      }
    }
  }
  
  requestAnimationFrame(removeClosedCaptions)
}

requestAnimationFrame(removeClosedCaptions)