Administration: Guard wp_ajax_widgets_order() against missing sidebars input#11970
Administration: Guard wp_ajax_widgets_order() against missing sidebars input#11970wprashed wants to merge 18 commits into
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Introduce a native Performance settings screen with controls for page caching, asset minification, critical CSS, lazy loading, image optimization, and database cleanup. Add core performance helpers for: - registering and sanitizing optimization settings - anonymous front-end page caching with cache invalidation hooks - front-end HTML and inline CSS/JS minification - critical CSS generation from inline styles - lazy-loading controls through existing media filters - AVIF/WebP output format preference when supported - cache clearing and database cleanup actions Wire the new screen into Settings, load the performance runtime during bootstrap, and add focused PHPUnit coverage for the new helpers.
…sent Add a Classic Editor warning for posts/pages whose content contains WordPress block comment syntax (<!-- wp:... -->). This helps prevent accidental overwrites when the Visual tab appears empty but block markup still exists in the Code tab. The notice is: Scoped to the Classic Editor content field (#content). Shown only when block comment markup is detected. Inserted inline above the editor (#wp-content-wrap). Guarded against duplicate rendering.
…s input Prevent an undefined index notice by checking isset( $_POST['sidebars'] ) before is_array(), and add an AJAX unit test covering the missing sidebars request case.
…ps://github.com/wprashed/wordpress-develop into codex-ticket-65335-classic-editor-block-warning
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Fix a typo in WP_Site_Icon::additional_sizes() where the subsize array used 'width ' (with a trailing space) instead of 'width'. Because of the incorrect key, width could be treated as missing when generating site icon subsizes, resulting in non-square dimensions for site_icon-* images in some flows. This change restores the expected square crop behavior for site icon sizes such as site_icon-32, site_icon-180, site_icon-192, and site_icon-270.
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Prevent an undefined index notice by checking isset( $_POST['sidebars'] ) before is_array(), and add an AJAX unit test for requests missing sidebars.