Re: [w3c/manifest] Clarify behaviour of a page linking to a manifest that is not within scope of that manifest (#784) from Marcos Cáceres on 2024-11-07 (public-webapps-github@w3.org from November 2024)

From: Marcos Cáceres <notifications@github.com>
Date: Thu, 07 Nov 2024 04:32:35 -0800
To: w3c/manifest <manifest@noreply.github.com>
Cc: Subscribed <subscribed@noreply.github.com>
Message-ID: <w3c/manifest/issues/784/2462121621@github.com>

Co-pilot has a good example:

To illustrate the problem mentioned in issue [#784](https://github.com/w3c/manifest/issues/784), here is an example web manifest and the URL at which the app is being installed from:

### Web Manifest (manifest.json)
```json
{
  &quot;name&quot;: &quot;Example App&quot;,
  &quot;short_name&quot;: &quot;Example&quot;,
  &quot;start_url&quot;: &quot;/start.html&quot;,
  &quot;scope&quot;: &quot;/why&quot;,
  &quot;display&quot;: &quot;standalone&quot;,
  &quot;background_color&quot;: &quot;#ffffff&quot;,
  &quot;theme_color&quot;: &quot;#000000&quot;,
  &quot;icons&quot;: [
    {
      &quot;src&quot;: &quot;icon.png&quot;,
      &quot;sizes&quot;: &quot;192x192&quot;,
      &quot;type&quot;: &quot;image/png&quot;
    }
  ]
}
```

### Example Page Linking to the Manifest (https://stormy-pincushion.glitch.me)
```html
&lt;!DOCTYPE html&gt;
&lt;html&gt;
&lt;head&gt;
    &lt;title&gt;Example App&lt;/title&gt;
    &lt;link rel=&quot;manifest&quot; href=&quot;manifest.json&quot;&gt;
&lt;/head&gt;
&lt;body&gt;
    &lt;h1&gt;Welcome to the Example App&lt;/h1&gt;
&lt;/body&gt;
&lt;/html&gt;
```

In this example, the page `https://stormy-pincushion.glitch.me` links to the manifest but the scope defined in the manifest is `/why`, which does not include the page itself. This situation illustrates the issue where Chrome currently allows installation but results in a page being displayed out of scope when the app is launched.

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Received on Thursday, 7 November 2024 12:32:39 UTC