There's VK poll widget in orignal that can't be displayed in IV; Whole article is about this poll/results at the moment of publishing. There's no problem to detect it and mark with @unsupported, my template already does that.
You're a little bit late. I've already published a new template ¯\_(ツ)_/¯
Type of issue
IV generated for non-target page
Reported
Feb 27, 2019
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There's no problem to detect it and mark with @unsupported, my template already does that.