20 April 2020
Note - this is a discussion and solution for a technical problem for a Wordpress instance that uses an SSL certificate signed by a non-public CA. If you don't care about this sort of thing, please move your eyes down to the next section. The error text that I saw in the new-to-me Site Health page following upgrading to WordPress 5.4: cURL error 60: SSL certificate problem: unable to get local issuer certificate The error above was generated because WordPress/PHP couldn't verify the site certificate. When this is broken, the impact can be significant on a WordPress instance. Some features…
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