Immediately after switching the page, it will work with CSR.
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That is, what we need is a rule: N scam ad impressions on my blog (even if they come from a third-party ad provider) = knock-knock from the police at my door as if I were writing scammy blog articles.
One of the problems highlighted was that the documented teardown procedure did not properly delete the OpenSearch domain. Would AWS Nuke (https://github.com/ekristen/aws-nuke) correctly destroy everything that the tutorial sets up?