Dojo fiddle

This JSFiddle is configured and ready to use for testing the Dojo framework.

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/dojo/1.9.1/dijit/themes/claro/claro.css">

JavaScript

require(["dojo/request/xhr", "dojo/json"], function(request, dojoJson) {
    var ObjArry=[], value = "test";
    
    var test1 = {key:value,  key:value,  key:value, key:value};
    var test2 = {key:value,  key:value,  key:value, key:value};
    
    ObjArray = dojoJson.stringify([ test1, test2 ]);
    
    request.post("services/service.php?where=saveObj", { 
        data: ObjArray,
        handleAs: "json",
        sync: true,
        timeout:13000,
        headers: {
            "Content-Type": "application/json"
        }
    }).then(function(data){
        console.log(data); //output - null
    });    
});