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75300 – Webhook host returned HTTP 3XX


75300 – Causes

  • The webserver may be redirecting HTTP to HTTPS, vice-versa, or between subdomains.
  • Some applications may attempt to normalize trailing slashes, redirecting clients.
  • A firewall may be redirecting connections not on your network.

75300 – Solutions

  • Set the webhook URL to the normalized form your application prefers after all redirects. Using a command like curl -i can reveal redirects.

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