Form is using get instead of post, can't figure out why

Question

I'm using angular to post a form, I'm receiving the following error which is usually related to a get instead of a post, the problem is I've clearly told it to post. Any idea what the issue could be?

An Error Was Encountered
The URI you submitted has disallowed characters.

This is everything related to Angular and the form.

 var app = angular.module("scd",
['ngSanitize','ngMessages','angularUtils.directives.dirPagination']);

 app.config(function($interpolateProvider) {
     $interpolateProvider.startSymbol('<%');
     $interpolateProvider.endSymbol('%>');
 });

    app.controller('formController', ['$scope', '$http', function($scope, $http) {

        $scope.submitEmail = function()
        {
            $http.post('/learnmore', {data: $scope.learn_more_email});
        }

        $scope.submitContact = function()
        {
            $http.post('/contact', {data: $scope.contact});
        }       

 }]);