Consider Cloudflare challenges to be bad captures #44
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We hit a lot of Cloudflare challenges on ehp.niehs.nih.gov last month that caused problems and hit them occasionally on other sites. Like AWS WAF challenges, these are not really good/valid/legitimate captures that should be considered as changed content. This adds heuristics for them to the
maybe_bad_capture()method so we don’t use them in changes.For more on the Cloudflare challenges, see: