如何在主屏幕上清除IOS Web App的缓存？ [英] How can I clear the cache of an IOS Web App on the Homescreen?

问题描述

我正在使用JQTouch在主屏幕上使用元标记apple-mobile-web-app-capable创建Web应用程序，但无论我在设置中清除缓存多少次，Web App的Javascript仍然是较旧的缓存版本。

I am using JQTouch to create a Web App on the Homescreen using meta tag "apple-mobile-web-app-capable", but no matter how many times I clear the cache from within Settings, the Web App's Javascript is still an older cached version.

奇怪的是，如果我将元标记的内容设置为;

Strangely enough, if I set the meta tag's content to;

<meta name="apple-mobile-web-app-capable" content="no" />

...然后将Web App添加到主屏幕，我在启动它时获得最新版本。

...then add the Web App to the Homescreen, I get the latest version when I launch it.

然而，如果我将元标记设置为;

Yet if I set the meta tag to;

<meta name="apple-mobile-web-app-capable" content="yes" />

...然后将Web App添加到主屏幕，我得到较旧的缓存版本。

...then add the Web App to the Homescreen, I get the older cached version.

PS。我可以确认只有javascript 不会刷新。

PS. I can confirm that is only the javascript which will not refresh.

推荐答案

你可以尝试添加一个js末尾的唯一字符串包括src属性（例如，使用时间戳）。请记住，您必须为每个要执行的刷新更改此唯一字符串，因此您可能需要考虑进行延迟加载（这本身可以解决您的问题）：
< script type =text / javascriptsrc =myScript.js？012345>< / script>

You could try adding a unique string to the end of your js include's src attribute (use a timestamp, for example). Bear in mind you'll have to change this unique string for each refresh you want to do, so you may want to consider doing lazy-loading (which may in itself solve your problem): <script type="text/javascript" src="myScript.js?012345"></script>

这通常强制浏览器抓取最新版本的脚本。可能会工作......

This usually forces the browser into grabbing the latest version of the script. Might work...

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