HTML5 localStorage错误与Safari：“QUOTA_EXCEEDED_ERR：DOM例外22：尝试向存储中添加超出配额的内容”。 [英] html5 localStorage error with Safari: "QUOTA_EXCEEDED_ERR: DOM Exception 22: An attempt was made to add something to storage that exceeded the quota."

问题描述

JavaScript：错误

$ b $我的webapp在ios Safari浏览器中有javascript错误b

未定义

QUOTA_EXCEEDED_ERR：DOM异常22：尝试向存储添加内容...

我的代码：

  localStorage.setItem（'test'，1）
  

解决方案

显然这是设计。当Safari（OS X或iOS）处于隐私浏览模式时，似乎 localStorage 可用，但试图调用 setItem


  store.js line 73 
 QUOTA_EXCEEDED_ERR：DOM异常22：尝试是为超过配额的存储添加了一些东西。 
  

会发生什么情况是窗口对象仍然暴露 localStorage 在全局命名空间中，但是当您调用 setItem 时，会抛出此异常。任何对 removeItem 的调用都将被忽略。

我相信最简单的修复方法（尽管我没有测试过这个跨浏览器然而）会改变函数 isLocalStorageNameSupported（）来测试你也可以设置一些值。

< a href =https://github.com/marcuswestin/store.js/issues/42 =noreferrer> https://github.com/marcuswestin/store.js/issues/42

 函数isLocalStorageNameSupported（）
 {
 var testKey ='test'，storage = window.sessionStorage; 
尝试
 {
 storage.setItem（testKey，'1'）; 
 storage.removeItem（testKey）; 
返回win&& amp;& amp;&赢得[localStorageName]; 
} 
 catch（error）
 {
 return false; 
} 
} 
  

My webapp have javascript errors in ios safari private browsing:

JavaScript:error

undefined

QUOTA_EXCEEDED_ERR:DOM Exception 22:An attempt was made to add something to storage...

my code:

localStorage.setItem('test',1)

解决方案

Apparently this is by design. When Safari (OS X or iOS) is in private browsing mode, it appears as though localStorage is available, but trying to call setItem throws an exception.

store.js line 73
"QUOTA_EXCEEDED_ERR: DOM Exception 22: An attempt was made to add something to storage that exceeded the quota."

What happens is that the window object still exposes localStorage in the global namespace, but when you call setItem, this exception is thrown. Any calls to removeItem are ignored.

I believe the simplest fix (although I haven't tested this cross browser yet) would be to alter the function isLocalStorageNameSupported() to test that you can also set some value.

https://github.com/marcuswestin/store.js/issues/42

function isLocalStorageNameSupported() 
{
    var testKey = 'test', storage = window.sessionStorage;
    try 
    {
        storage.setItem(testKey, '1');
        storage.removeItem(testKey);
        return localStorageName in win && win[localStorageName];
    } 
    catch (error) 
    {
        return false;
    }
}

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