javascript：将BASE64转换为BLOB仅在safari中失败 [英] javascript: convert BASE64 to BLOB fails in safari only

问题描述

我正在尝试转换blob（使用 zip.js 创建）到base64并将其保存在websql数据库中。然后我也想以相反的方式做这个过程。无论如何，我的测试代码（没有压缩）看起来像：

I'm trying to convert a blob (created with zip.js) to a base64 and persist it in the websql database. Then I would also like to do this process the other way around. Anyway, my test code (without the compression) looks something like:

var blob = new Blob([data], {
    type : "text/plain"
});

blobToBase64(blob, function(b64) {      // convert BLOB to BASE64
    var newBlob = base64ToBlob(b64) ;   // convert BASE64 to BLOB
    console.log(blob.size + " != " + newBlob.size) ;
});

查看一个工作示例： http://jsfiddle.net/jeanluca/4bn5G/

所以，奇怪的是，它适用于Chrome，但不在Safari中（不在我的iPad上）。

So, the strange thing is, that it works in Chrome, but not in Safari (als not on my iPad).

我还尝试将base64ToBlob重写为

I also tried to rewrite the base64ToBlob to

function base64ToBlob(base64) {
    var binary = atob(base64);
    return new Blob([binary]) ;
}

然后de uncompress不再起作用，给我一个IndexSizeError： DOM例外1例外

But then de uncompress doesn't work anymore, giving me an "IndexSizeError: DOM Exception 1 " exception

我的代码中有什么可能出错的建议吗？

Any suggestion what might be wrong in my code ?

Thnx

推荐答案

我发布评论后发现了一个解决方案。

Well I found a solution just after posting my comment.

而不是

new Blob（[data]）;

do

new Blob（[data.buffer]）;

注意添加.buffer

notice the addition of ".buffer"

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