Angular serializes query strings in a particular way that many backend frameworks (including Rails) don't understand. jQuery param on the other hand has been the standard for this for years.

Example 1

var params = {
    arr: [1,2,3]
}

Angular serializes to

?arr=1&arr=2&arr=3

Jquery.param serializes to

arr%5B%5D=1&arr%5B%5D=2&arr%5B%5D=3 

// which is equivalent to
// arr[]=1&arr[]=2&arr[]=3 

Example 2

var params = {
    obj: {
        foo: 1          
    }
}

Angular serializes to:

obj=%7B%22foo%22:1%7D

// equivalent to
// obj={"foo":1}

jQuery.param serializes to

obj%5Bfoo%5D=1 

// which is eq to 
// obj[foo]=1 

There are several closed issues related to this, but this seems to be a common problem, jquery.param looks likes the expected behaviour.

#1363
#3121
#1640

Some of the conversation on these issues seems to imply that this has been done, but I tested this using Angular 1.2 with the same results as before.

Please lets consider making Angular serialization equivalent to jQuery.param

Thanks