[Bug] UAs aren't applied to whitelisted domains.

[RokeJulianLockhart]

I've:

{
  "blacklist": [],
  "custom": {},
  "mode": "whitelist",
  "parser": {},
  "popular-browsers": [
    "Chrome"
  ],
  "popular-oss": [
    "Linux"
  ],
  "popup-os": "Linux",
  "protected": [
    "google.com/recaptcha",
    "gstatic.com/recaptcha",
    "accounts.google.com",
    "accounts.youtube.com",
    "gitlab.com/users/sign_in",
    "challenges.cloudflare.com"
  ],
  "remote-address": "",
  "ua": "",
  "user-styling": "",
  "userAgentData": true,
  "whitelist": [
    "youtube.com",
    "google.com",
    "webbrowsertools.com"
  ],
  "json-guid": "4fe74956-a772-41fb-add3-f333ab5f5be9",
  "json-forced": false
}

However, at www.youtube.com on firefox-143.0.4-1.fc42, and m.youtube.com on fenix-146.0a1.multi.android-arm64-v8a.apk, I see half yellow, half blue. I have confirmed this, as the aforementioned entrant for webbrowsertools.com demonstrates: it returns the original UA.

[tfiskgul]

I have the same issue. White list doesn't work.

[RokeJulianLockhart]

@tfiskgul, this might relate to the issue cited in issues/210#issuecomment-2094142802.