This is indeed true, and IIUC using Shadow DOM would be a workable mitigation.
Btw, ignore caniuse etc - Firefox _technically_ does support Shadow DOM, just version 0, which it has apparently supported for a little while now. It's better than nothing in a pinch.
Chrome et al are at Shadow DOM v1, which is what caniuse tests its support/no-support metrics against.
Btw, ignore caniuse etc - Firefox _technically_ does support Shadow DOM, just version 0, which it has apparently supported for a little while now. It's better than nothing in a pinch.
Chrome et al are at Shadow DOM v1, which is what caniuse tests its support/no-support metrics against.