blocks|key|3042360|text|缓存清单的文件名是什么？我听说这个扩展可能会影响android的行为。确保您的文件以.manifest结尾|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3042361|此外，确保您的服务器正确地为清单文件提供MIME类型，即text/cache-manifest|3042362|entityMap^0|16|9|0|S|J|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|H|3|-4|5|6|7|P|8|@]|D|@]|E|$]]]|I|$]]

What's the file name of your cache manifest? I have heard that the extension could affect android's behavior. Make sure your file ends with <code>.manifest</code>

In addition, make sure your server is correctly serving the MIME type for manifest files, which is <code>text/cache-manifest</code>

blocks|key|201948|text|我会检查并看到：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|201949|缓存清单MIME类型实际上是text/cache-manifest.|offset|length|style|CODE|201950|Your+-|unordered-list-item|201951|以CACHE+MANIFEST开头，此后的URL要么是相对于清单的，要么是绝对URL。|ordered-list-item|201952|清单中没有任何断开的链接，也没有强制的NETWORK:标记。|201953|201954|201955|entityMap^0|0|E|J|0|0|1|E|0|J|8|0|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|U|8|@$D|V|E|W|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|X|8|@]|9|@]|A|$]]|$1|K|3|L|5|M|7|Y|8|@$D|Z|E|10|F|G]]|9|@]|A|$]]|$1|N|3|O|5|M|7|11|8|@$D|12|E|13|F|G]]|9|@]|A|$]]|$1|P|3|-4|5|6|7|14|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|15|8|@]|9|@]|A|$]]|$1|R|3|-4|5|6|7|16|8|@]|9|@]|A|$]]]|S|$]]

I'd check and see that:

<ol>
<li>MIME type really is <code>text/cache-manifest</code>.</li>
<li>Your cache-manifest starts with <code>CACHE MANIFEST</code>, your urls thereafter are either relative to the manifest or absolute URLs.</li>
<li>You don't have any broken links in your manifest, or a forced <code>NETWORK:</code> tag.</li>
</ol>

blocks|key|3042404|text|除了本·马克斯·鲁宾斯坦和康比德的答案之外，如果你的应用url是这样的：example.com/myapp，你需要添加下面的正斜杠，比如：example.com/myapp/。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3042405|当你在线时，服务器会自动重定向你，但如果你离线了，这显然不会发生。|3042406|entityMap^0|10|H|1X|I|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]|$9|M|A|N|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|O|8|@]|D|@]|E|$]]|$1|H|3|-4|5|6|7|P|8|@]|D|@]|E|$]]]|I|$]]

In addition to Ben Max Rubinstein's and Compid's answer, if your app url is something like this: <code>example.com/myapp</code> you need to add a following forward slash, like this: <code>example.com/myapp/</code>. 

When you are online the server will redirect you automatically, but if your are offline obviously that cannot happen.

blocks|key|2829832|text|因此，我曾在多个实例中遇到过类似的issues+with+chrome和安卓系统。显然在实现上没有问题，因为我在FF上试过了，它工作得很好，safari也是如此。我认为唯一的原因是，当chrome运行时，数据被缓存到RAM上的网页上。如果你关闭浏览器，android结束这个过程，一个新的chrome实例就会被初始化，你现有的应用程序数据就会消失。我不能确认这一点，但似乎很可能是问题所在。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2829833|还要检查您的服务器是否配置为正确发送mime类型：How+to+set+up+your+server+to+send+the+correct+MIME+types|2829834|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/12932685/page-disappears-from-cache-after-first-redirect-on-chrome|1|https://developer.mozilla.org/en/docs/Properly_Configuring_Server_MIME_Types^0|H|I|0|0|P|1K|1|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@$A|Q|B|R|1|S]]|C|$]]|$1|D|3|E|5|6|7|T|8|@]|9|@$A|U|B|V|1|W]]|C|$]]|$1|F|3|-4|5|6|7|X|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]|N|$5|I|J|K|C|$L|O]]]]

So, I had faced similar <a href="https://stackoverflow.com/questions/12932685/page-disappears-from-cache-after-first-redirect-on-chrome">issues with chrome</a> and android on multiple instances. Apparently there is no issue with the implementation because I tried it on FF and it worked just fine, and the same was true about safari. The only thing I presume this is caused by is, the data is getting cache for the web page on the RAM when chrome is running. If you close the browser, and android ends the process a fresh instance of chrome is initialized and your existing app data is gone. I cannot confirm this, but it seems very likely that it might be the issue. 

Also check your server is configured to send the mime type correctly: <a href="https://developer.mozilla.org/en/docs/Properly_Configuring_Server_MIME_Types" rel="nofollow noreferrer">How to set up your server to send the correct MIME types</a>

blocks|key|199710|text|我遇到的情况是，Apache的mime.types配置中的.manifest文件被正确地设置为text/cache-manifest，然后下面的几行被重写为application/x-ms-application+(为了与MS的ClickOnce兼容)。为了解决这个问题，我采用了不同的文件名结尾，即.cachemanifest，正确配置了它的mime类型，重启Apache，将清单文件重命名为cache.cachemanifest，将清单属性更改为指向这个文件，然后我终于能够在安卓上缓存我的web应用程序(在桌面浏览器中没有任何问题，显然不关心缓存清单文件的mime类型)。希望这能有所帮助。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|199711|entityMap^0|F|A|T|9|1B|J|26|S|46|E|5H|J|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]|$9|M|A|N|B|C]|$9|O|A|P|B|C]|$9|Q|A|R|B|C]|$9|S|A|T|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|U|8|@]|D|@]|E|$]]]|G|$]]

What I encountered was that the <code>.manifest</code> files in Apache's <code>mime.types</code> configuration was correctly set to <code>text/cache-manifest</code> and then several lines below was overwritten as <code>application/x-ms-application</code> (for compatibility with MS' ClickOnce thing). To resolve this I've taken different file name ending, namely <code>.cachemanifest</code>, configured correctly its mime type, restarted Apache, renamed manifest file as <code>cache.cachemanifest</code>, changed my &lt;html&gt; manifest attribute to point to this file, and then I was finally able to cache my web app on Android (there wasn't any problem in desktop browsers which apparently don't care about the mime type of cache manifest file). Hope this helps.

This is regarding HTML5 offline apps on Android devices. 

We are running into an issue where bookmarking an offline capable HTML5 app (with a complete cache manifest file) fails to load on the Android browser under the following conditions:

<ol>
<li>Bookmark the app on the browser</li>
<li>Switch off all wireless connectivity</li>
<li>Close the browser completely</li>
<li>Attempt to launch the bookmark from the homescreen</li>
</ol>

We end up with an "Unable to connect to the internet" message. The app works perfectly fine on iOS devices when saved to homescreen and on airplane mode.

Is there a specific way the app should be saved, or is this an Android specific quirk?

HTML5 Offline app on Android devices

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