added support for setting responseType to array buffer

[TimvdEijnden]

I was having trouble loading binary files when using Mirage in my Ember project. It seems that pretender didn't support other responses than text.

This change allow you to set the contentType of an XHR request to arraybuffer, this results in the binary content being available using the response property.

var xhr = new XMLHttpRequest();
  xhr.open("GET", '/assets/pretender.ogg', true );
  // important because this allow to load the binary data correctly, it makes the response available which contains the arraybuffer
  xhr.responseType = 'arraybuffer';
  xhr.onload = function ()
  {
   var arrayBuffer = xhr.response;
  };
  xhr.send();

this PR fixes #72

[TimvdEijnden]

@trek Please review my PR, would be awesome if it's added! 🎵

[deepan83]

We need this for our apps as well...so would be great if it is added!

[TimvdEijnden]

I'm required to use my own branch in my project now. There isn't much activity lately. 😿

[simonihmig]

Also using my own fork (#79), +1 for getting this merged!

[trek]

Thanks! This will be in next release (coming shortly)

[bhaidar]

Hi @TimvdEijnden can you share how you used the responseType: arraybuffer to return binary data? thanks

[TimvdEijnden]

@bhaidar We used it to load sound files as in the example in the start.