text: const defaultFilters = [
      "*://*.doubleclick.net/*",
      "*://partner.googleadservices.com/*",
      "*://*.googlesyndication.com/*",
      "*://*.google-analytics.com/*",
      "*://creative.ak.fbcdn.net/*",
      "*://*.adbrite.com/*",
      "*://*.exponential.com/*",
      "*://*.quantserve.com/*",
      "*://*.scorecardresearch.com/*",
      "*://*.zedo.com/*",
      "*://*.macy.com/*",
      "*://*.macy's.com/*",
      "*://*.at&t.com/*",
      "*://*.statefarm.com/*",
      "*://*.tmobile.com/*",
      "*://*.macys.com/*",
      "*://*.jcpenny's.com/*",
      "*://*.t-mobile.com/*",
      "*://*.tmobile.com/*",
      "https://youtu.be/OyJpSU2dDIE",
      "https://i.ytimg.com/generate_204",
      "*://*.ka-cn.com/*",
  //*://*.ka-cn.*/* removed
      "*://*.fi.google.com/*",
      "*://*.fi-google.com/*",
  ]
  
  chrome.webRequest.onBeforeRequest.addListener(
      function(details) { return { cancel: true }},
      { urls: defaultFilters },
      ["blocking"]
  )
  