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This changeset adds support for the Speculation Rules API and configures it by default to `prefetch` certain links with an eagerness of `conservative`, leading to improved performance by starting to load URLs before the user lands on them. The new `WP_Speculation_Rules` class is a container class representing the set of used speculation rules. By default, WordPress Core will only add a single speculation rule, which results in most links being prefetched conservatively. The behavior of that main speculation rule can be altered by using the new `wp_speculation_rules_configuration` filter, which receives an associative array with `mode` and `eagerness` keys, or `null`. Both `mode` and `eagerness` have a default value of `auto`, which for now will result in the aforementioned behavior. The value `null` is used by default in certain scenarios such as when the current user is logged in. Developers can explicitly provide supported mode values (`prefetch` or `prerender`) and other supported eagerness values (`conservative`, `moderate`, or `eager`) to override and enforce the respective behaviors, or return `null` to disable speculative loading feature (either unconditionally or for certain situations). The Speculative Loading feature plugin for example, which this feature is based on, will make use of this filter to continue to use mode `prerender` and eagerness `moderate` by default. Developers can call the `wp_get_speculation_rules_configuration()` function to check how speculative loading is configured on the WordPress site. Another important filter introduced is `wp_speculation_rules_href_exclude_paths`, which allows to expand the list of URL patterns that are excluded from being prefetched or prerendered per WordPress Core's main speculation rule configuration. Several URL patterns such `/wp-admin/*` (any URL within WP Admin) or `/*\\?(.+)` (any URL that includes query parameters) are already excluded by default. Plugins that use content that would be preferable not to prefetch or prerender can use the filter to provide corresponding URL patterns. More advanced customization is possible by adding further speculation rules that will be loaded in addition to WordPress Core's main speculation rule. This can be achieved via the new `wp_load_speculation_rules` action, which receives the `WP_Speculation_Rules` class instance and can amend it as needed. Props flixos90, westonruter, joemcgill, desrosj, mukesh27, tunetheweb, thelovekesh, adamsilverstein, swissspidy, domenicdenicola, jeremyroman. Fixes #62503. Built from https://develop.svn.wordpress.org/trunk@59837 git-svn-id: http://core.svn.wordpress.org/trunk@59179 1a063a9b-81f0-0310-95a4-ce76da25c4cd
58 lines
1.1 KiB
PHP
58 lines
1.1 KiB
PHP
<?php
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/**
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* WordPress Version
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*
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* Contains version information for the current WordPress release.
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*
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* @package WordPress
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* @since 1.2.0
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*/
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/**
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* The WordPress version string.
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*
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* Holds the current version number for WordPress core. Used to bust caches
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* and to enable development mode for scripts when running from the /src directory.
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*
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* @global string $wp_version
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*/
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$wp_version = '6.8-alpha-59837';
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/**
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* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.
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*
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* @global int $wp_db_version
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*/
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$wp_db_version = 58975;
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/**
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* Holds the TinyMCE version.
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*
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* @global string $tinymce_version
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*/
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$tinymce_version = '49110-20201110';
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/**
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* Holds the required PHP version.
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*
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* @global string $required_php_version
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*/
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$required_php_version = '7.2.24';
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/**
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* Holds the names of required PHP extensions.
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*
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* @global string[] $required_php_extensions
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*/
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$required_php_extensions = array(
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'json',
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'hash',
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);
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/**
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* Holds the required MySQL version.
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*
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* @global string $required_mysql_version
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*/
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$required_mysql_version = '5.5.5';
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