[IRRELEVANT] This will keep the play button on microsoft azures cutting edge text to speech demo page unlocked beyond the 1k char limit as the backend allows much longer texts.

azure_tts_length_unlock.user.js

/* THIS HAS BECOME IRRELEVANT BECAUSE MICROSOFT TOOK DOWN THE PUBLIC DEMO */
// ==UserScript==
// @name     ms azure tts text length unlock
// @version  1
// @grant    none
// @run-at   document-idle
// @include  https://azure.microsoft.com/en-us/products/cognitive-services/text-to-speech/*
// ==/UserScript==

const playBtn = document.getElementById("playbtn");

var observer = new MutationObserver((muts) => {
  muts.forEach((mut) => {
    if (mut.type === "attributes") {
      playBtn.removeAttribute("disabled");
    }
  });
});


observer.observe(playBtn, {
  attributes: true
});