离线iOS Web应用程序:加载我的清单,但不能脱机工作 [英] Offline iOS web app: loads my manifest, but doesn't work offline

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问题描述

我正在编写一个可在iOS上离线使用的网络应用。我创建了一个清单,我将其作为 text / cache-manifest 提供,并且在Safari中运行时通常可以正常工作。



如果我将它作为应用程序添加到我的主屏幕,然后打开飞行模式,它根本无法打开应用程序 - 我收到错误,它提供关闭应用程序。 (我认为这是离线应用程序的全部目的!)




  • 当我第一次在线加载应用程序时,我可以在我的日志中看到它正在请求清单中列出的每个页面。


  • 如果我关闭飞行模式,并加载应用程序,我可以看到它请求的第一个文件是我的main.html文件(它在清单中列出,并且具有 manifest = ... 属性)。然后它会请求清单和我的所有其他文件,为所有文件获取200(并且在此加载期间第二次请求304)。


  • 当我在Chrome中加载页面,然后点击左右,日志显示它尝试访问服务器上的唯一内容是/favicon.ico(这是一个404,而我认为iOS Safari并未尝试加载它) )。在清单中列出的所有文件都是有效的并且没有错误地提供。

  • Chrome检查器在APPLICATION CACHE下列出所有缓存文件,已列出我期望的。整个文件集大约是50 KB,在我找到的离线资源的任何限制下。




这应该是工作,即,我应该能够创建一个离线iOS应用程序只使用HTML / CSS / JS?



(相关,但对我来说听起来不太一样,因为它是关于Safari而不是一个独立应用程序:无法获取网络应用程序)

我确认名称'cache.manifest'解决了离线缓存问题。 IOS 4.3。其他名称根本不起作用。


I'm writing a web app to be used offline on iOS. I've created a manifest, am serving it up as text/cache-manifest, and it usually works fine, when running inside Safari.

If I add it as an app to my home screen, then turn on Airplane mode, it can't open the app at all -- I get an error and it offers to close the app. (I thought this was the entire purpose of an offline app!)

  • When I load the app a first time when online, I can see in my logs that it's requesting every page listed in the manifest.

  • If I turn off Airplane mode, and load the app, I can see the first file it's requesting is my main.html file (which is both listed in the manifest, and has the manifest=... attribute). It then requests the manifest, and all my other files, getting 200's for all (and 304's for anything requested a second time during this load).

  • When I load the page in Chrome, and click around, the logs show the only thing it's trying to reach on the server is "/favicon.ico" (which is a 404, and which I don't think iOS Safari tries to load, anyway). All of the files listed in the manifest are valid and served without error.

  • The Chrome inspector lists, under "APPLICATION CACHE", all the cached files I've listed which I expect. The entire set of files is about 50 KB, way under any limit on offline resources that I've found.

Is this supposed to work, i.e., am I supposed to be able to create an offline iOS app using only HTML/CSS/JS? And where do I go about figuring out why it's failing to work offline?

(Related but doesn't sound quite the same to me, since it's about Safari and not a standalone app: "Can't get a web app to work offline on iPod")

解决方案

I confirm that name 'cache.manifest' solved the offline caching problem in IOS 4.3. Other name simply did not work.

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