Private cache type full#However, be aware that adding a non-cacheable block to a page prevents the full page cache from caching that page.In the context of websites and apps, caching is defined as storing content in a temporary storage, like that on the user's browser or device or on an intermediate server, to reduce the time it takes to access that file.Īccording to HTTP Archive, among the top 300,000 sites, the user's browser can cache nearly half of all the downloaded content. Use POST requests to modify Magento state (e.g., adding to shopping cart, wishlist, etc.)īlocks that can’t be cached should be marked as non-cacheable in the layout. Model and block level should identify themselves for invalidation supportĭeclare a custom context variable if you plan to show different public content with the same URL Pages render without sensitive private data session and customer DTO objects are emptyįunctionality specific to both current session (customer) and page should be written using JavaScript (e.g., related product listing should exclude items that are already in the shopping cart) The customer data invalidation mechanism no longer relies on the private_content_version. Any future HTTP POST or PUT request changes the value of private_content_version and results in the updated content being cached by the browser.Subsequent requests with the same data version are retrieved from local storage. The server’s reply is cached in the browser’s local storage. JavaScript interprets the presence of the private_content_version cookie to mean that private content is present on the page, so it sends an AJAX request to the Magento server to get the current private content.The server generates the private_content_version cookie for this user and returns the response to the browser.The user performs some action, such as adding to a cart, that results in an POST or PUT request to the Magento application.Private content, which is stored in the browser local storage, uses the private_content_version cookie to store the version. For more information about caching, see RFC-2616 section 13. Using GET or HEAD methods might trigger caching and prevent updates to private content. Use only HTTP POST or PUT methods to change state (e.g., adding to a shopping cart, adding to a wishlist, etc.) and do not expect to see caching on these methods. There are sections that allow you to declare an ‘action’ node without specifying a sections, for instance, when logging out: Private cache type code#The following example adds comments to app/code/Magento/Catalog/etc/frontend/sections.xml so you can see what the code is doing. Private cache type update#Information will be updated after what comes first: section_data_lifetime time passed or an action that the update cart triggered. Product information will not be simultaneously updated in customer cart (product name, price, product enabled/disabled). After scheduled time passes, section cart will be updated.
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