IE 8: In case error, Not able to get Error Message

[rkhedekar]

I am using IE 8 and CROSS
I am not able to get error message in case any API call fails. I also tried returning JSON results.

Here are complete request and response objects. How to get Error message in this case.

Request

POST http://xxx/Delete/?key=233219f4
Accept: /
Origin: http://localhost
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.2; WOW64; Trident/4.0; .NET4.0E; .NET4.0C; .NET CLR 3.5.30729; .NET CLR 2.0.50727; .NET CLR 3.0.30729; HPNTDFJS; InfoPath.3)
Host: rahul
Content-Length: 0
DNT: 1
Connection: Keep-Alive
Pragma: no-cache

Response

HTTP/1.1 417 Expectation Failed
Cache-Control: no-cache
Pragma: no-cache
Content-Length: 101
Content-Type: text/plain; charset=utf-8
Expires: -1
Server: Microsoft-IIS/8.0
Access-Control-Allow-Origin: *
X-AspNet-Version: 4.0.30319
X-Powered-By: ASP.NET
Date: Fri, 21 Aug 2015 12:23:41 GMT

File Delete Operation Failed : Folder not empty

JSON response

HTTP/1.1 417 Expectation Failed
Cache-Control: no-cache
Pragma: no-cache
Content-Length: 86
Content-Type: text/html
Expires: -1
Server: Microsoft-IIS/8.0
Access-Control-Allow-Origin: *
X-AspNet-Version: 4.0.30319
X-Powered-By: ASP.NET
Date: Fri, 21 Aug 2015 12:57:13 GMT

[{ "msg" : "Folder with fileID =233219f4 is not empty " }]

[MoonScript]

I believe an an error case, the response body will only be treated as text/plain. Can you see that text when you inspect the jqXHR.responseText property in your complete callback?