WordPress integration

Troubleshooting

WordFence users

If you have WordFence installed, these two settings need to be turned off:

• Disable WordPress application passwords

• Block IPs who send POST requests with blank User-Agent and Referer

WP REST API returns 401

• Check that you have provided the correct credentials

  • The username must be the actual username of the user connecting (not the name of the application password)

  • The application password may have been revoked/deleted, please check in WP

• If the error message contains zapier.php then it is due to the WP Zapier Plugin, see:

  • https://wordpress.org/support/topic/undefined-index-http_user_agent-20/

WP REST API returns 404

• One solution was to change permalink settings to "post name", see

  • https://stackoverflow.com/a/48457298 and

  • https://wordpress.stackexchange.com/questions/314808/why-does-wp-json-not-work-on-the-plain-permalink-structure

WP REST API returns 403

• If the error message includes the words rayId or challenge then it is due to Cloudflare

  • Solution: Disable bot challenge mode in Cloudflare (see here for some tips)

• If the error message includes the words jwt_auth_bad_auth_header then it is due to having JWT authentication installed

  • Solution: Remove JWT Authentication plugin

• If your site is running on WPEngine, this can be caused by their legacy network configuration

  • Solution: Reach out to WPEngine support and ask them to resolve (see here for some info)