jQuery.ajax和图像数据编码 [英] jQuery.ajax and image data encoding

问题描述

我试图获取通过AJAX，已经使用InkFilePicker上传存储在S3中的图像。 InkFilePicker有一个方法叫做filepicker.read（），它可用于从图像读取的原始数据。然而，这是相当有限的，所以我想用jQuery.ajax（）来代替。但似乎他们不返回完全相同的数据。

I'm trying to fetch an image stored at S3, via AJAX, which has been uploaded using InkFilePicker. InkFilePicker has a method called filepicker.read() which can be used to read the raw data from an image. However, it's quite limited so I want to use jQuery.ajax() instead. But it seems that they don't return exactly the same data.

中的数据时，它记录到控制台时使用filepicker.read（）看起来是这样的：

The data received when using filepicker.read() looks like this when logging it to the console:

在使用jQuery.ajax（），它看起来是这样的：

When using jQuery.ajax() it looks like this:

在使用由jQuery.ajax（）我的其他脚本似乎打破（我提取EXIF数据），返回的数据。

When using the data returned by jQuery.ajax() my other scripts seems to break (I'm extracting the EXIF data).

那么，为什么它显得与众不同呢？请问jQuery的尝试连接Ç不知何故数据code /德$ C $？我能prevent呢？

So, why does it look different at all? Does jQuery try to encode/decode the data somehow? Can I prevent that?

推荐答案

好吧，我不得不将它添加到<一个href="https://developer.mozilla.org/en-US/docs/Web/API/XMLHtt$p$pquest/Using_XMLHtt$p$pquest#Handling_binary_data"相对=nofollow>覆盖MIMETYPE 出于某种原因...

Ok, I had to add this to override the mimetype for some reason...

$.ajax({
...
  beforeSend: function(xhr) {
      xhr.overrideMimeType( "text/plain; charset=x-user-defined" )
  }
...
})

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