load javascript via $.ajax with headers

Question

I'm trying to load a script file via $.ajax and also set some headers in the request, is this possible? It seems to work in chrome but not firefox, the file loads and I can see it in the scripts tab of firebug but in the callback when I try to use the script I get an error.

If I remove the headers from the request then it works fine. but I need to have the headers added to the request.

I'm not using $.getScript as it does not allow headers to be set.

I would like form thing like this:

$.ajax({
   url: '/somefile',
   contentType: 'application/javascript',
   headers: { someheader: 'somevalue'},
   type: 'get',
   success: function(data){ 
       eval(data);  // dont seem to need this in chrome
       doSomethingWithNewScript();
   }
});

Update the error is not an error with making the request. I get 'doSomethingWithNewScript' not defined when I try and use the script. so its as if the request is fine but firefox cant use the script.

The headers set are custom headers like 'X-Username': 'dave'

which error you are getting when you set headers? also, what you are setting as headers? — Hardik Patel
– Hardik Patel, Commented Mar 21, 2012 at 16:17
Hi ZiTAL this solution workd for me, if you post it as an answer i can give you the points. Its also worth nothing that this lead me to finding a structual problem with my code, which didnt cause an error and passed all my test but when loaded with ajax prevented the browser from recognising the javascript - only when headers were added to the request. — Dave
– Dave, Commented Mar 23, 2012 at 11:39

rfunduk · Accepted Answer · 2012-03-21 16:28:12Z

1

Try specifying dataType when you make the request, so that jQuery will handle the response as you are expecting:

...
type: 'get',
dataType: 'script',
...

answered Mar 21, 2012 at 16:28

rfunduk

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1 Comment

Dave Over a year ago

Hi rfunduk just tried, getting exactly the same result im afraid

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