=== Mersin AMP Domain ===
Contributors: internal
Requires at least: 5.8
Requires PHP: 7.4
Stable tag: 2026.09.21.5
License: GPLv2 or later

Serves a theme-independent AMP mirror on a separate domain and places the centrally managed Mersin showcase on the AMP home page.

== Description ==

Configure one AMP hostname under Settings > Mersin AMP Domain. Public WordPress content is rendered as AMP on that hostname, desktop pages receive rel=amphtml, and AMP pages canonicalize back to desktop. No shortcode or theme edit is required.

The showcase is shown only on the first AMP home page. A site-specific first-party AMP pixel URL can be configured optionally; no shared analytics ID is bundled.

DNS, exact-host TLS and the AMP hostname web-server vhost must be configured outside WordPress and mapped to the same document root.

== Installation ==

1. Upload and activate the plugin.
2. Open Settings > Mersin AMP Domain.
3. Enter the separate AMP hostname and enable the mirror.
4. Purge application and edge caches.

== Changelog ==

= 2026.09.21.5 =
* Preserves the trusted cross-origin showcase origin inside the sandbox, fixing image rendering in affected Windows Chrome sessions.

= 2026.09.21.4 =
* Resolves and caches the central manifest server-side.
* Emits a direct revisioned showcase URL, avoiding mobile amp-iframe redirect and stale-cache failures.

= 2026.09.21.2 =
* Limited the showcase to the exact AMP root URL, excluding a static front page's slug alias.

= 2026.09.21.1 =
* Blocked the virtual WordPress robots route early on the AMP hostname.

= 2026.09.18.1 =
* Removed the showcase heading and explanatory copy.
* Compacted the reusable AMP header and top spacing so the showcase begins immediately.

= 2026.09.18 =
* Initial release.
* Separate-host AMP rendering for home, singular content, archives, search and pagination.
* Centrally switchable Mersin showcase on the AMP home page.
* Optional per-site first-party AMP pixel URL.
