To use maskable icons, sometimes referred to as adaptive icons on Android, you'll also need to add 'purpose': 'any maskable' to the icon property.įor Chromium, you must provide at least a 192x192 pixel icon, and a 512x512 pixel icon. Each object must include the src, a sizes property, and the type of image. The icons property is an array of image objects. When a user installs your PWA, you can define a set of icons for the browser to use on the home screen, app launcher, task switcher, splash screen, and so on. In consequence, developers should not repeat the application name in the when the app is running in standalone mode. For PWAs running in standalone mode, Chromium prepends the short_name (or, if it's not available, the name) to what is specified in the of the HTML document to prevent disguise attacks where standalone apps might try to be mistaken, for example, for operating system dialogs. This title is displayed in various window-switching surfaces such as alt+ tab, overview mode, and the shelf window list. Operating systems usually expect to have a title for each app window. If both are provided, short_name is used on the user's home screen, launcher, or other places where space may be limited. You must provide at least the short_name or name property. json extensions, which may be easier for developers to understand.Ī typical manifest looks something like this: Key manifest properties # short_name and/or name # The specification suggests the extension should be. The manifest file can have any name, but is commonly named manifest.json and served from the root (your website's top-level directory).

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