just curious: since fallback image is pretty smaller than normal thumbnails (it seems size is fixed to 120x90 even if we requests hqdefault or some sizes which normally provides more high resolution), couldn't we use it for detect?
<rinsuki[m]> "just curious: since fallback..." <- In short, we *could* but it would require a bunch of brittle code modifications for little benefit, I think (at least in the context of this discussion)
Basically, we have solid mechanism to produce the right URL to an image, then let the browser load that.
So we could potentially
And what I mean by "at least in the context of this discussion" is that we might just decide to use those YT thumbnails as a fallback rather than the default, so this fallback image would be rarely seen.
