Title: Two Critical Errors
Last modified: December 21, 2022

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# Two Critical Errors

 *  [tornadotitans](https://wordpress.org/support/users/tornadotitans/)
 * (@tornadotitans)
 * [3 years, 5 months ago](https://wordpress.org/support/topic/two-critical-errors/)
 * I’ve searched around the archives but I’ve seemed to have ran into a couple of
   issues that any existing advice doesn’t seem to help — I’m hoping it’s not a 
   server/host problem.
 * Here are the errors:
 * **Author URL is not accessibleActivityPub**
 * Your author URL `https://www.tornadotitans.com/author/tornadotitans/` does not
   return valid JSON for `application/activity+json`. Please check if your hosting
   supports alternate `Accept` headers.
 * **WebFinger endpoint is not accessibleActivityPub**
 * Your WebFinger endpoint `https://www.tornadotitans.com/.well-known/webfinger?
   resource=acct:tornadotitans@www.tornadotitans.com` does not return valid JSON
   for `application/jrd+json`.
 * Any help would be appreciated!

Viewing 4 replies - 1 through 4 (of 4 total)

 *  Plugin Author [Matthias Pfefferle](https://wordpress.org/support/users/pfefferle/)
 * (@pfefferle)
 * [3 years, 5 months ago](https://wordpress.org/support/topic/two-critical-errors/#post-16310202)
 * Do you use a caching plugin? If yes, you should disable the cache for the author
   pages.
 * Regarding the WebFinger endpoint: The Error Page seems to be an error of your
   hosting env and not from WordPress (see a WordPress 404 error: [https://www.tornadotitans.com/asdasdasd](https://www.tornadotitans.com/asdasdasd)),
   so it seems to be ignored/blocked by your hosting provider. This mainly happens
   if the hoster uses the `.well-known/acme-challenge` for lets encrypt: [https://letsencrypt.org/de/docs/challenge-types/](https://letsencrypt.org/de/docs/challenge-types/)
 *  [David Innes](https://wordpress.org/support/users/david-innes/)
 * (@david-innes)
 * [3 years, 5 months ago](https://wordpress.org/support/topic/two-critical-errors/#post-16318492)
 * I’m getting similar errors in Site Tools for the WebFinger endpoint on clean 
   WordPress installations on two different servers, including one that failed even
   after I deactivated LetsEncrypt and another, temporary host that doesn’t have
   HTTPS at all. (It’s also a problem on my actual, real website.)
 * There’s no /.well-known folder on any of the sites I’ve tried ActivityPub on,
   and so neither /.well-known/webfinger nor /.well-known/acme-challenge
   Is there
   another possibility? Another path that should be used beside /.well-known?
 *  Plugin Author [Matthias Pfefferle](https://wordpress.org/support/users/pfefferle/)
 * (@pfefferle)
 * [3 years, 5 months ago](https://wordpress.org/support/topic/two-critical-errors/#post-16318496)
 * The problem: WebFinger/ActivityPub needs https! So you can‘t simply disable SSL!
   But it seems to be a configuration thing. My Hoster also uses let’s encrypt and
   it works without issues. Sadly WebFinger is required by Mastodon, so you can‘t
   use the profile url instead.
 *  Plugin Author [Matthias Pfefferle](https://wordpress.org/support/users/pfefferle/)
 * (@pfefferle)
 * [3 years, 5 months ago](https://wordpress.org/support/topic/two-critical-errors/#post-16318500)
 * BTW. the plugin does not create a .well-known folder, it simply uses WordPress‘
   mod-rewrite integration. If you use nginx you have to check your server setup!

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘Two Critical Errors’ is closed to new replies.

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 * 4 replies
 * 3 participants
 * Last reply from: [Matthias Pfefferle](https://wordpress.org/support/users/pfefferle/)
 * Last activity: [3 years, 5 months ago](https://wordpress.org/support/topic/two-critical-errors/#post-16318500)
 * Status: not resolved