Weird JSON behavior when requesting a json file via $.ajax

Question

I have a json file (text2.json) and a text file (text2.txt) which has the exact same content as text2.json.

I found it quite interesting when requesting json file via $.ajax:

Requesting text2.json to web server:

 $.ajax({
   url: "./scripts/text2.json",
   dataType:"json",
   success: function(data){
            alert('success');
   },
   error: function(){alert('error');}
 });

This alerts error.

Requesting text2.txt to web server:

 $.ajax({
   url: "./scripts/text2.txt",
    dataType:"json",
    success: function(data){
            alert('success');
    },
    error: function(){alert('error');}
  });

This alerts success.

As of now, I only have 2-day javascript experience and I was just wondering what causes this trade-off...

EDIT

For text2.json + type:"json", I revised my alert() in error: as you guys suggested. Then the alert gives "[object object]" as my json file is "{"result":true, "count":2}".That just looks like an empty object or something.

Then I detected there's a "parseerror" when requesing text2.json as json dataType. I am not sure about this info. Looks like some initial settings is incorrect. Anyone wanna give me a hint?

Looks like my json file is so much like a malformed json. That might be the case ...

@romo im pretty sure that both files have the exact same content. — jasonkim
– jasonkim, Commented Nov 19, 2012 at 22:08
actually no error returns @AbrahamP . I set up alert() for success and error so all I got is just info from alert(). — jasonkim
– jasonkim, Commented Nov 19, 2012 at 22:09

Roberto · Accepted Answer · 2012-11-19 22:13:26Z

0

Probably the error is related to the headers of the response. You are specifying a json datatype, thus the expected headers should be of type application/json

answered Nov 19, 2012 at 22:13

Roberto

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