Fix passing of mpConfig.base into jasmine requirejs callback function.

@@ -407,7 +407,7 @@ module.exports = function (grunt) {
                 },
             };
             if (mpConfig.jasmine.withCoverage) {
-                templateOptions.requireConfig.callback = function() {
+                var instrumentationCallback = function instrumentationCallback(mpConfigBase) {
                     /* global requirejs:false */
                     var oldLoad = requirejs.load;
                     requirejs.load = function (context, moduleName, url) {
@@ -431,13 +431,17 @@ module.exports = function (grunt) {
                             }
                         }
                         url = parts.join('/');
-                        if (url.indexOf(mpConfig.base + '/scripts/') === 0) {
+                        if (url.indexOf(mpConfigBase + '/scripts/') === 0) {
                             url = './.grunt/grunt-contrib-jasmine/' + url;
                         }
                         return oldLoad.apply(this, [context, moduleName, url]);
                     };
                 };
 
+                var stringify = require('node-stringify');
+                //templateOptions.requireConfig.callback = eval('(' + stringify(callbackBuilder) + ')(' + JSON.stringify(mpConfig.base) + ')');
+                templateOptions.requireConfig.callback = new Function(stringify(instrumentationCallback) + '(' + JSON.stringify(mpConfig.base) + ');');
+
                 templateOptions = {
                     coverage: 'dist/coverage/coverage.json',
                     report: 'dist/coverage',

@@ -36,6 +36,7 @@
     "jshint-stylish": "~0",
     "load-grunt-tasks": "",
     "lodash": "",
+    "node-stringify": "",
     "punch": "~0.5.46",
     "punch-html-fragment-content-parser": "^0.5.1"
   },