javascript - jQuery ajax method with dataType 'json' incorrectly parsing json data -

i'm having inexplicable behaviour using jquery 1.4.2, , i'm beginning think might safari problem, not jquery one. let me explain.

i began enough using .getjson this:

$.getjson("/challenge/results", form_data, function(data){   //i know console.log bad news, simplification.   console.log('data', data);  } 

and log gave me along lines of

>locations: array (1) 

while expecting array of size 2. had @ json in response:

{"locations": [{"customer_id":2,"editable":true,"id":971,"latitude":43.659208,"longitude":-79.407501,"max_zoom":25,"min_zoom":9,"name":"test"}, {"customer_id":3,"editable":true,"id":974,"latitude":36.746944,"longitude":-107.970899,"max_zoom":25,"min_zoom":9,"name":"test2"}]} 

i've simplified considerably sake of clarity, far can tell, json received valid (generated programmatically through rails). [update: jsonlint confirms hypothesis.]

i surprised this, converted request $.ajax request see if there subtle difference between them (since then, looking in source of jquery see $.getjson calls $.ajax).

    $.ajax({         url:"/challenge/results",         datatype: 'json',         data: form_data,         cache:false,         success: function(data, textstatus){             console.log("data!", data, textstatus);         }); 

but alas! same response:

locations: array (1) success

at point, must admit - getting bit silly, thought try bound fail:

    $.ajax({         url:"/challenge/results",         datatype: 'text',         data: form_data,         cache:false,         success: function(data, textstatus){             console.log("parsed:!", $.parsejson(data), textstatus);         }); 

much surprise console read:

locations: array (2) success

i stumped. @ point dug in heels , took long hard @ jquery source (1.4.2). suppose unsurprisingly, ajax function seems not handle json parsing (although, must admit, can't sure).

i'm totally @ loss why happening - appreciated.

perhaps missed something, notice json object has single property ("locations") array it's value. have tried:

$.getjson("/challenge/results", form_data, function(data){   //i know console.log bad news, simplification.   console.log('data', data.locations);  }