当我在线时，该应用程序在iPad上运行顺畅，但一旦离线，我会收到这些错误消息：“因未连接到互联网而无法打开MyApp”（在iPad的“添加到主屏幕”视图中）和“Safari无法打开页面，因为未连接到互联网”（在同一iPad上的safari-view中）。
我已经阅读了数百个故障排除/问题页面和manifest教程，试图解决此问题，但没有建议起作用。在阅读了这么多关于此功能的内容之后，它应该很容易实现，但是我还是无法做到。
以下是我迄今为止所做/尝试/使用的总结，但都没有成功。我已经尝试了所有以下操作，使用cache.manifest和manifest.appcache变体，但都没有成功，为了简单起见，我只记录cache.manifest案例：
I am developing and testing using latest Xampp Apache for Windows server locally installed on Win10 x64
The target device is an iPad2 running iOS version 8.4 and mobile safari version 8. My full user agent string is:
Mozilla/5.0 (iPad; CPU OS 8_4 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) Version/8.0 Mobile/12H143 Safari/600.1.4In Xampp I have updated the httpd.conf file to include the correct MIME types for .manifest
AddType text/cache-manifest .manifestIn Xampp I have updated the mime.types file under xampp\apache\conf\ to include the correct MIME types for .manifest
text/cache-manifest manifestIn Xampp, as my web app uses ttf, woff, ico, png, jpg, js, mp3 and css files, I have verified the mime.types file under xampp\apache\conf\ to ensure it includes the MIME types for:
application/x-font-ttf ttf ttc application/x-font-woff woff image/x-icon ico image/png png image/jpeg jpeg jpg jpe application/javascript js audio/mpeg mpga mp2 mp2a mp3 m2a m3aI have placed a .htaccess file in the web apps root public HTML directory for the correct MIME types for .manifest
AddType text/cache-manifest .manifest*I have included the manifest attribute in the HTML element of the index page:
<!DOCTYPE html> <html lang="en" manifest="cache.manifest"> <head>I've tried removing this line from the declaring index.html but it did not work:
<meta name="apple-mobile-web-app-capable" content="yes">I've allowed plenty of time for the app to cache in Safari before switching to Airplane mode and refreshing. I am using a Windows machine so cannot use Web Inspector to debug. I used Jonathan Stark's Debugging Script and JSConsole to try and debug but it doesn't really give much useful information except that it is uncached which I know because it isn't working.
I have created a cache.manifest file and placed it in the web apps root public HTML directory. I have included the advice of other solutions, many of which where derived from other stackoverflow questions, including:
- Primarily I've stuck with the cache.manifest name as multiple sources have advised Safari mobile will igrnore everything else
- Not including the index.html file which references the .manifest
- Listing all resources under the CACHE section
- Including the * after NETWORK:
- Including all section headers even if not used
- Used only relative URI's
- The manifest file contents are relative to the manifest file (it is in the web apps root directory with index.html)
- The manifest file is being served from the same origin as the host
- Ensured all files are available to avoid errors and dropping the .manifest. As I mentioned offline caching is working in desktop Chrome which validates the manifest's contents
- The manifest file does not list the manifest file
CACHE MANIFEST
# ver 0.0.8
CACHE:
data/apple-touch-icon.png
data/favicon.ico
data/fnt0.ttf
data/fnt0.woff
data/fnt1.ttf
data/fnt1.woff
data/fnt2.ttf
data/fnt2.woff
data/fnt3.ttf
data/fnt3.woff
data/html5.png
data/html5-unsupported.html
data/img0.jpg
data/img1.png
data/img10.jpg
data/img11.jpg
data/img12.png
data/img13.png
data/img14.png
data/img15.png
data/img16.jpg
data/img17.png
data/img18.png
data/img19.png
data/img2.png
data/img20.png
data/img21.png
data/img22.png
data/img23.png
data/img24.png
data/img25.png
data/img26.png
data/img27.png
data/img28.png
data/img29.png
data/img3.png
data/img30.png
data/img31.png
data/img4.png
data/img5.png
data/img6.png
data/img7.png
data/img8.png
data/img9.png
data/player.js
data/slide1.css
data/slide1.js
data/slide10.css
data/slide10.js
data/slide11.css
data/slide11.js
data/slide12.css
data/slide12.js
data/slide13.css
data/slide13.js
data/slide14.css
data/slide14.js
data/slide15.css
data/slide15.js
data/slide16.css
data/slide16.js
data/slide17.css
data/slide17.js
data/slide18.css
data/slide18.js
data/slide2.css
data/slide2.js
data/slide3.css
data/slide3.js
data/slide4.css
data/slide4.js
data/slide5.css
data/slide5.js
data/slide6.css
data/slide6.js
data/slide7.css
data/slide7.js
data/slide8.css
data/slide8.js
data/slide9.css
data/slide9.js
data/sound1.mp3
NETWORK:
*
FALLBACK:
我希望你能帮忙看一下这个问题，我实在找不到问题出在哪里。