My extension for Google Chrome that blocks website, doesn't work on youtube, but on every other website it works

Question

Description

I made this extension for google chrome, which blocks website by keyword and is working perfectly on all websites, but on youtube it doesn't work.

Is there any solution so that my extension works on youtube as well?

background.js

console.log("Loaded extension");



function blockRequest(details) {
   return {cancel: true};
}
function updateFilters(urls) {
   if(chrome.webRequest.onBeforeRequest.hasListener(blockRequest))
     chrome.webRequest.onBeforeRequest.removeListener(blockRequest);
   chrome.webRequest.onBeforeRequest.addListener(blockRequest, {
      urls: [
         "https://*/*"+ "mrbeast*"
         ]
   }, 
   ['blocking']);
}
updateFilters(); 

maninfest.json

{
  "name": "Foco Study",
  "description": "Foco",
  "version": "2.0",
  "permissions": [
     "webRequestBlocking",
     "webRequest",
     "activeTab",
     "tabs",
     "http://*/*",
     "https://*/*",
     "https://www.youtube.com/*"
  ],
  "background" : {
    "scripts":  [
      
      "background.js"
    ],
    "matches": [
      "*://www.youtube.com/*", "http://*/*",
      "https://*/*"
    ]
  },
  "manifest_version": 2
}