12/9/2023 0 Comments Stale queue meaning![]() ![]() This happens even when the user doesn't have a tab open to your site. ![]() ![]() It allows you to request background data synchronization as a one-off, or on an (extremely heuristic) interval. addEventListener ( 'install', function ( event ) ) On background-sync # On background-sync.īackground sync is another feature built on top of Service Worker. Kusto scans the table looking to identify data extents that would participate in the data purge. These are things that would make your site entirely non-functional if they failed to be fetched, things an equivalent platform-specific app would make part of the initial download. The process of selectively purging data from Azure Data Explorer happens in the following steps: Phase 1: Give an input with an Azure Data Explorer table name and a per-record predicate, indicating which records to delete. Ideal for: CSS, images, fonts, JS, templates… basically anything you'd consider static to that "version" of your site. While this happens any previous version of your Service Worker is still running and serving pages, so the things you do here mustn't disrupt that. You can use this to get stuff ready, stuff that must be ready before you handle other events. Service Worker gives you an install event. First up, caching, when should it be done? On install-as a dependency # On install - as a dependency. Service Worker lets you handle requests independently from caching, so I'll demonstrate them separately. The cache machine-when to store resources # Let's take a look at a few possible patterns in isolation, but in practice you'll likely use many of them in tandem depending on URL and context.įor a working demo of some of these patterns, see Trained-to-thrill, and this video showing the performance impact. While Post-dated cheques are dated in such a form that they can only be cashed in in the. That means you get to create your own patterns. Stale cheques are outdated cheques issued to the bank after the date of payment has expired. It gives you control over caching and how requests are handled. With Service Worker we gave up trying to solve offline, and gave developers the moving parts to go solve it themselves. Serving Suggestions-responding to requests.The cache machine-when to store resources. ![]()
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