blocks|key|3047131|text|因为我在WWW的任何地方都找不到答案，但是过了一段时间，我想给其他用户提供我的解决方案/答案，他们可能也有同样的问题：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3047132|在我输入Pushpad文件的文件中，我在<head>-Tag之前编写了一些PHP，以包含一些文件，例如用于数据库连接。在我将PHP移到<head>-Tag下面之后，一切都很好。|offset|length|style|CODE|3047133|entityMap^0|0|K|6|1V|6|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@$D|L|E|M|F|G]|$D|N|E|O|F|G]]|9|@]|A|$]]|$1|H|3|-4|5|6|7|P|8|@]|9|@]|A|$]]]|I|$]]

Because I didn't find an answer anywhere out there in the WWW, but managed to get it working after some time I want to provide my solution/answer for other users, who probably have the same problem:

In the file where I inlcuded the Pushpad files I wrote some PHP-Code before the <code>&lt;head&gt;</code>-Tag to include some files, e.g. for database connection. After I moved the PHP-Code below the <code>&lt;head&gt;</code>-Tag everything worked fine.

blocks|key|2291881|text|对我来说是重定向。manifest.json必须返回200状态代码(必须直接从服务器获得)，不需要任何重定向。您可以通过|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2291882|wget+--max-redirect=0+https://example.com/manifest.json|2291883|或|2291884|curl+https://example.com/manifest.json|2291885|entityMap^0|9|D|0|0|1J|0|0|0|12|0^^$0|@$1|2|3|4|5|6|7|N|8|@$9|O|A|P|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|T|8|@]|D|@]|E|$]]|$1|J|3|K|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@]|E|$]]|$1|L|3|-4|5|6|7|X|8|@]|D|@]|E|$]]]|M|$]]

For me it was a redirect. The <code>manifest.json</code> must return a 200 status code (must be directly available from the server), without any redirects.
You can check the response via

<code>wget --max-redirect=0 https://example.com/manifest.json</code>

or 

<code>curl https://example.com/manifest.json</code>

blocks|key|3152178|text|我也面临同样的问题，在头标签后面添加了清单文件。它适用于me.Cheers！|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3152179|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I faced same issue,added manifest file right after head tag . which worked for me.Cheers!

blocks|key|2291945|text|这可能是服务工作人员作用域的问题。当我重新排列我的文件/目录时，我遇到了类似的问题。确保您的sw.js与您的manifest.json处于同一级别，否则服务工作人员将无法找到您的清单。尝试将它们都放在目录的根目录中。还可以通过将服务工作人员的scope添加到serviceWorker.register()来指定它。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2291946|if+('serviceWorker'+in+navigator)+{
++navigator.serviceWorker.register('/sw-test/sw.js',+{scope:+'/sw-test/'})
++.then(function(reg)+{
++++//+registration+worked
++++console.log('Registration+succeeded.+Scope+is+'+%2B+reg.scope);
++}).catch(function(error)+{
++++//+registration+failed
++++console.log('Registration+failed+with+'+%2B+error);
++});
}|code-block|syntax|javascript|2291947|在这里阅读更多信息：Workers|2291948|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API/Using_Service_Workers^0|3D|5|3L|O|0|0|A|7|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]|$9|X|A|Y|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|Z|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|10|8|@]|D|@$9|11|A|12|1|13]]|E|$]]|$1|M|3|-4|5|6|7|14|8|@]|D|@]|E|$]]]|N|$O|$5|P|Q|R|E|$S|T]]]]

This may be an issue with your Service Worker scope. I ran into a similar problem when I rearranged my files/directories. Make sure your sw.js is on the same level as your manifest.json, otherwise the service worker won't be able to find your manifest. Try putting them both in the root of your directory. Optionally, you can specify the <code>scope</code> of your service worker by adding it to <code>serviceWorker.register()</code>:

<pre><code>if ('serviceWorker' in navigator) {
 navigator.serviceWorker.register('/sw-test/sw.js', {scope: '/sw-test/'})
 .then(function(reg) {
 // registration worked
 console.log('Registration succeeded. Scope is ' + reg.scope);
 }).catch(function(error) {
 // registration failed
 console.log('Registration failed with ' + error);
 });
}
</code></pre>

Read more here:
<a href="https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API/Using_Service_Workers" rel="nofollow noreferrer">https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API/Using_Service_Workers</a>

blocks|key|3152123|text|想知道你的"manifest.json“是否公开？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3152124|如果不是，也许您可以尝试将其设置为公共访问，以查看这是否有帮助。|3152125|而且，目前的铬，得到"manifest.json“时，似乎不会提供饼干。|3152126|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

Was wondering if your "manifest.json" is public accessible ?

If not maybe you can try to set it public accessible to see if that helps or not.

And it seems that the current chrome, when getting the "manifest.json" won't supply the cookies.

blocks|key|3047176|text|修复这个错误的方法有三种:+a)不对"manifest.json“文件进行重定向。(+b)将指向该文件的链接放在标签顶部。(+c)确保在此之前没有其他清单文件，因为似乎web推送脚本将尝试导入第一个文件并返回错误的数据。我已经尝试了这三种方法，最终迫使Chrome行为举止。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3047177|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

There seem to be three ways to fix this bug:
a) No redirects for "manifest.json" file.
b) Put a link to this file at the top of the tag.
c) Be sure, that there is no other manifest file before this one, cause it seems that web push script will try to import the first one and return an error due to the wrong data.
I have tried all three and finally forced Chrome to behave.

blocks|key|3152252|text|添加以下块为我修复了这个问题：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3152253|self.addEventListener('push',+(event)+=>+{
++const+title+=+'Get+Started+With+Workbox';
++const+options+=+{
++++body:+event.data.text()
++};
++event.waitUntil(self.registration.showNotification(title,+options));
});|code-block|syntax|javascript|3152254|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Adding the following block fixed this for me:
<pre class="lang-js prettyprint-override"><code>self.addEventListener('push', (event) =&gt; {
 const title = 'Get Started With Workbox';
 const options = {
 body: event.data.text()
 };
 event.waitUntil(self.registration.showNotification(title, options));
});
</code></pre>

I am trying to implement Push Notifications on my website (using Pushpad). Therefore I created a "manifest.json" with following content:

<pre><code>{
 "gcm_sender_id": "my_gcm_sender_id",
 "gcm_user_visible_only": true
}
</code></pre>

of course I created a valid GCM-Account and have a sender id

I put the manifest.json into my root directory and I also added this line to my index.php:

<pre><code>&lt;link rel="manifest" href="/manifest.json"&gt;
</code></pre>

Using Firefox everything works fine and I can send and receive push notifications (so I think the manifest-include works fine), but Chrome won't work...

The console shows following error:

<pre><code>Uncaught (in promise) DOMException: Registration failed - manifest empty or missing
</code></pre>

I searched Google for a long time and tried everything I found, but nothing works.

What I tried:

<ol>
<li>created the manifest.json with "Editor" and saved it as type All Types (so no hidden .txt-file) and also with UTF-8-Encoding.</li>
<li>restarted Chrome</li>
<li>cleared Chrome's cache, history, etc.</li>
</ol>

I really hope somebody can help me.

Google Chrome: DOMException: Registration failed - manifest empty or missing

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我正在尝试在我的网站上实现推送通知(使用Pushpad)。因此，我创建了一个具有以下内容的"manifest.json"：{    "gcm_sender_id": "my_gcm_sender_id",    "gcm_user_visible_only": true}当然，我创建了一个有效的GCM-帐户，并有一个发件人id。我将manifest.json放到我的根目录中，并将这一行添加到man

问Google : DOMException:注册失败-清单为空或丢失
EN

回答 7

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