fix($http): config.param should expand array values properly

Today, calling e.g. $http(url, { params: { a: [1,2,3] } }) results in a query
string like "?a=%5B1%2C2%2C3%5D" which is undesirable. This commit enhances
buildURL to createa query string like "?a=1&a=2&a=3".

BREAKING CHANGE: if the server relied on the buggy behavior then either the
backend should be fixed or a simple serialization of the array should be done
on the client before calling the $http service.

Closes #1363

1 files changed, 6 insertions, 0 deletions

diff --git a/test/ng/httpSpec.js b/test/ng/httpSpec.js
index 45d31eef..060cadc9 100644
--- a/test/ng/httpSpec.js
+++ b/test/ng/httpSpec.js
@@ -147,6 +147,12 @@ describe('$http', function() {
         $httpBackend.expect('GET', '/url?a=1&b=%7B%22c%22%3A3%7D').respond('');
         $http({url: '/url', params: {a:1, b:{c:3}}, method: 'GET'});
       }));
+
+
+      it('should expand arrays in params map', inject(function($httpBackend, $http) {
+          $httpBackend.expect('GET', '/url?a=1&a=2&a=3').respond('');
+          $http({url: '/url', params: {a: [1,2,3]}, method: 'GET'});
+      }));
     });