Reverse proxy configuration

Check your proxy settings

1. Open PrestaShop Back Office → Modules → PrestaOne → Configure.
2. Open Connections & Access.
3. Check the connection warning and open Advanced → Reverse proxy configuration.

Trusted proxies is optional and controls client IP detection only. You do not need to add a proxy address to enable HTTPS. Authentication remains unchanged.

If the warning remains

Update older modules that show proxy_trust_required. Module 1.7.18 no longer uses the proxy confirmation checkbox or server attestation marker. If the warning remains, check the scheme passed to PHP.

forwarded_scheme_invalid means a malformed scheme header.forwarded_scheme_conflict means CF-Visitor and X-Forwarded-Proto disagree about the original scheme. A missing scheme on an HTTP backend cannot identify the original HTTPS connection automatically.

Server configuration checklist

• The public store URL uses HTTPS with a valid certificate.
• The proxy preserves the original scheme in X-Forwarded-Proto or CF-Visitor.
• If both are present, their original schemes agree. In an X-Forwarded-Proto list, the first value describes the original request.
• A Cloudflare-to-origin HTTP hop must not overwrite the original HTTPS scheme with its own HTTP scheme.
• Restrict direct origin access to your proxy where possible; scheme detection does not prove that internal hops are encrypted.
• Validate proxy sources before trusting client IP headers. On Apache, configure RemoteIPTrustedProxy for mod_remoteip.

Still cannot connect?

Send support the store URL, the diagnostic ID shown by PrestaOne and the exact error time. Never send passwords, pairing codes or tokens.