Syntax Error issue with Jquery JSON request

Question

I have a request being made to the Steam WebAPI via Jquery:

$.ajax({
   url: myurl,
   dataType: 'json', 
   success: success,
   cache: true
});

And this is the response I get from the Steam Community servers (truncated):

{
"result": {
    "status": 1,
    "num_results": 25,
    "total_results": 500,
    "results_remaining": 475,
    "matches": [
        [[OMMITTED FOR BREVITY]]

But Chrome is giving me this error (and doesn't run the success function):

Uncaught SyntaxError: Unexpected token :

(This error is for line 2 - "result": { )

Am I missing something?

It looks like you're calling something that isn't actually JSONP. — SLaks
– SLaks, Commented Nov 13, 2013 at 1:11
It's not JSONP, it's just normal JSON. Why would that make this result in failure? — Nick
– Nick, Commented Nov 13, 2013 at 1:16
success is the function that gets when the request gets completed successfully. If it makes any difference, the success function is dynamically assigned (this is all inside a function). — Nick
– Nick, Commented Nov 13, 2013 at 1:25
What is the result if you paste the resulting text into JSONLint? — jasonscript
– jasonscript, Commented Nov 13, 2013 at 1:26

Dr.Molle · Accepted Answer · 2013-11-13 02:19:00Z

1

The requested URL(taken from the comments) contains this part: json=jQuery110205507024014368653_1384305203368

This obviously is a result of a different request with the settings:

   dataType: "jsonp", 
   jsonp: "json"

(jQuery wouldn't add this parameter independently without these settings)

In this case the expected response-format is jsonp(not json) , but the response is json( what results in the error).

edited Nov 13, 2013 at 2:19

answered Nov 13, 2013 at 2:12

Dr.Molle

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3 Comments

Nick Over a year ago

It's not the result of a different request. The code I put in the question is the code that is being used. That's why I can't get to the bottom of this issue. It returns JSON data but it still gives me the bad syntax error.

Dr.Molle Over a year ago

As I said, jQuery wouldn't add this parameter independently without these settings . However, it's not possible for me to request the ressource directly to inspect the headers, assuming there will no Access-Control-Allow-Origin-header be sent that matches your domain you will not be able to access the JSON at all, JSONP would be the only option in this case.

Nick Over a year ago

This 'Access-Control-Allow-Origin' piece is the reason the syntax is the way it is. I have no idea what this actually means, but if I do it another way it gives me this error. Can you just briefly elaborate on what this is?

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