In our example app, we serve content from the cache instead of the network as long as the resource is actually in the cache.
When implemented properly as a progressive enhancement, service workers can benefit users who have modern browsers that support the API by providing offline support, but won't break anything for those using legacy browsers. Service workers are quite powerful as they can take control over network requests, modify them, serve custom responses retrieved from the cache, or synthesize responses completely. They can do a lot more than "just" offering offline capabilities, including handling notifications, performing heavy calculations on a separate thread, etc. We examine how to add offline functionality. In this article, we look at how it is used in our js13kPWA example (see the source code also). Now that we've seen what the structure of js13kPWA looks like and have seen the basic shell up and running, let's look at how the offline capabilities using Service Worker are implemented. In order to return activationLockBypassCode property using graph, it needs to explicitly included in the request.If you send an unfiltered query to Graph API for the device object, a set of default values is returned and activationLockBypassCode will be null. Supervised devices can generate a device-specific Activation Lock bypass code, which is stored on Apple's activation server.
Disable Activation Lock lets you remove the Activation Lock from supervised devices without the user's Apple ID and password. To help solve these problems, Apple introduced Activation Lock disable in iOS/iPadOS 7.1.
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