diff --git a/package-lock.json b/package-lock.json
index 012ea6969..76d487065 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -6153,7 +6153,7 @@
 		},
 		"css-select": {
 			"version": "1.2.0",
-			"resolved": "https://registry.npmjs.org/css-select/-/css-select-1.2.0.tgz",
+			"resolved": "http://registry.npmjs.org/css-select/-/css-select-1.2.0.tgz",
 			"integrity": "sha1-KzoRBTnFNV8c2NMUYj6HCxIeyFg=",
 			"requires": {
 				"boolbase": "~1.0.0",
@@ -6573,7 +6573,7 @@
 					"dependencies": {
 						"pify": {
 							"version": "2.3.0",
-							"resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
+							"resolved": "http://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
 							"integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw="
 						}
 					}
@@ -6790,7 +6790,7 @@
 			"dependencies": {
 				"domelementtype": {
 					"version": "1.1.3",
-					"resolved": "https://registry.npmjs.org/domelementtype/-/domelementtype-1.1.3.tgz",
+					"resolved": "http://registry.npmjs.org/domelementtype/-/domelementtype-1.1.3.tgz",
 					"integrity": "sha1-vSh3PiZCiBrsUVRJJCmcXNgiGFs="
 				}
 			}
@@ -7364,7 +7364,7 @@
 		},
 		"electron-osx-sign": {
 			"version": "0.4.10",
-			"resolved": "https://registry.npmjs.org/electron-osx-sign/-/electron-osx-sign-0.4.10.tgz",
+			"resolved": "http://registry.npmjs.org/electron-osx-sign/-/electron-osx-sign-0.4.10.tgz",
 			"integrity": "sha1-vk87ibKnWh3F8eckkIGrKSnKOiY=",
 			"requires": {
 				"bluebird": "^3.5.0",
@@ -10912,7 +10912,7 @@
 		},
 		"isemail": {
 			"version": "1.2.0",
-			"resolved": "https://registry.npmjs.org/isemail/-/isemail-1.2.0.tgz",
+			"resolved": "http://registry.npmjs.org/isemail/-/isemail-1.2.0.tgz",
 			"integrity": "sha1-vgPfjMPineTSxd9lASY/H6RZXpo="
 		},
 		"isexe": {
@@ -11432,7 +11432,7 @@
 				},
 				"jest-environment-jsdom": {
 					"version": "22.4.3",
-					"resolved": "https://registry.npmjs.org/jest-environment-jsdom/-/jest-environment-jsdom-22.4.3.tgz",
+					"resolved": "http://registry.npmjs.org/jest-environment-jsdom/-/jest-environment-jsdom-22.4.3.tgz",
 					"integrity": "sha512-FviwfR+VyT3Datf13+ULjIMO5CSeajlayhhYQwpzgunswoaLIPutdbrnfUHEMyJCwvqQFaVtTmn9+Y8WCt6n1w==",
 					"requires": {
 						"jest-mock": "^22.4.3",
@@ -11442,7 +11442,7 @@
 				},
 				"jest-message-util": {
 					"version": "22.4.3",
-					"resolved": "https://registry.npmjs.org/jest-message-util/-/jest-message-util-22.4.3.tgz",
+					"resolved": "http://registry.npmjs.org/jest-message-util/-/jest-message-util-22.4.3.tgz",
 					"integrity": "sha512-iAMeKxhB3Se5xkSjU0NndLLCHtP4n+GtCqV0bISKA5dmOXQfEbdEmYiu2qpnWBDCQdEafNDDU6Q+l6oBMd/+BA==",
 					"requires": {
 						"@babel/code-frame": "^7.0.0-beta.35",
@@ -11454,12 +11454,12 @@
 				},
 				"jest-mock": {
 					"version": "22.4.3",
-					"resolved": "https://registry.npmjs.org/jest-mock/-/jest-mock-22.4.3.tgz",
+					"resolved": "http://registry.npmjs.org/jest-mock/-/jest-mock-22.4.3.tgz",
 					"integrity": "sha512-+4R6mH5M1G4NK16CKg9N1DtCaFmuxhcIqF4lQK/Q1CIotqMs/XBemfpDPeVZBFow6iyUNu6EBT9ugdNOTT5o5Q=="
 				},
 				"jest-util": {
 					"version": "22.4.3",
-					"resolved": "https://registry.npmjs.org/jest-util/-/jest-util-22.4.3.tgz",
+					"resolved": "http://registry.npmjs.org/jest-util/-/jest-util-22.4.3.tgz",
 					"integrity": "sha512-rfDfG8wyC5pDPNdcnAlZgwKnzHvZDu8Td2NJI/jAGKEGxJPYiE4F0ss/gSAkG4778Y23Hvbz+0GMrDJTeo7RjQ==",
 					"requires": {
 						"callsites": "^2.0.0",
@@ -11546,7 +11546,7 @@
 		},
 		"jest-get-type": {
 			"version": "22.4.3",
-			"resolved": "https://registry.npmjs.org/jest-get-type/-/jest-get-type-22.4.3.tgz",
+			"resolved": "http://registry.npmjs.org/jest-get-type/-/jest-get-type-22.4.3.tgz",
 			"integrity": "sha512-/jsz0Y+V29w1chdXVygEKSz2nBoHoYqNShPe+QgxSNjAuP1i8+k4LbQNrfoliKej0P45sivkSCh7yiD6ubHS3w=="
 		},
 		"jest-haste-map": {
@@ -13076,7 +13076,7 @@
 		},
 		"media-typer": {
 			"version": "0.3.0",
-			"resolved": "https://registry.npmjs.org/media-typer/-/media-typer-0.3.0.tgz",
+			"resolved": "http://registry.npmjs.org/media-typer/-/media-typer-0.3.0.tgz",
 			"integrity": "sha1-hxDXrwqmJvj/+hzgAWhUUmMlV0g="
 		},
 		"mem": {
diff --git a/packages/app/main/src/services/conversationService.spec.ts b/packages/app/main/src/services/conversationService.spec.ts
index ca0f0c354..da1d76f9c 100644
--- a/packages/app/main/src/services/conversationService.spec.ts
+++ b/packages/app/main/src/services/conversationService.spec.ts
@@ -40,8 +40,9 @@ describe('The ConversationService should call "fetch" with the expected paramete
     expect(headers instanceof nodeFetch.Headers).toBeTruthy();
     expect(headers === headers).toBeTruthy();
     expect(method).toBe('POST');
-    expect(body[0].name).toBeFalsy();
-    expect(body[0].id).toBeFalsy();
+    const members = JSON.parse(body);
+    expect(members[0].name).toBeFalsy();
+    expect(members[0].id).toBeFalsy();
     expect(headersInstance).toEqual(headers);
   });
 
@@ -54,7 +55,8 @@ describe('The ConversationService should call "fetch" with the expected paramete
     expect(headers instanceof nodeFetch.Headers).toBeTruthy();
     expect(headers === headers).toBeTruthy();
     expect(method).toBe('DELETE');
-    expect(body[0].id).toBe('1234');
+    const users = JSON.parse(body);
+    expect(users[0].id).toBe('1234');
     expect(headersInstance).toEqual(headers);
   });
 
diff --git a/packages/app/main/src/services/conversationService.ts b/packages/app/main/src/services/conversationService.ts
index 7ebf79478..743094359 100644
--- a/packages/app/main/src/services/conversationService.ts
+++ b/packages/app/main/src/services/conversationService.ts
@@ -11,7 +11,7 @@ export class ConversationService {
     return fetch(url, {
       headers,
       method: 'POST',
-      body: [{ name, id }]
+      body: JSON.stringify([{ name, id }])
     });
   }
 
@@ -20,7 +20,7 @@ export class ConversationService {
     return fetch(url, {
       headers,
       method: 'DELETE',
-      body: [{ id }]
+      body: JSON.stringify([{ id }])
     });
   }
 
diff --git a/packages/emulator/core/package.json b/packages/emulator/core/package.json
index 61b43d114..184d3e5e4 100644
--- a/packages/emulator/core/package.json
+++ b/packages/emulator/core/package.json
@@ -8,7 +8,7 @@
   "main": "lib/index.js",
   "types": "lib/index.d.ts",
   "scripts": {
-    "build": "babel ./src --out-dir lib --extensions \".ts,.tsx\" --ignore \"**/*.spec.ts\" && tsc --emitDeclarationOnly --declaration",
+    "build": "babel ./src --out-dir lib --extensions \".ts,.tsx\" --ignore \"**/*.spec.ts\" --source-maps inline && tsc --emitDeclarationOnly --declaration",
     "build:watch": "npm run build:prod --outdir lib --watch",
     "clean": "rimraf lib",
     "lint": "tslint --project tslint.json",
diff --git a/packages/emulator/core/src/emulator/middleware/addUsers.ts b/packages/emulator/core/src/emulator/middleware/addUsers.ts
index 61b690590..88d99c5d2 100644
--- a/packages/emulator/core/src/emulator/middleware/addUsers.ts
+++ b/packages/emulator/core/src/emulator/middleware/addUsers.ts
@@ -42,7 +42,7 @@ import { ConversationAware } from './fetchConversation';
 export default function addUsers(_botEmulator: BotEmulator) {
   return async (req: ConversationAware, res: Restify.Response, next: Restify.Next): Promise<any> => {
     try {
-      const members: ChannelAccount[] = req.body;
+      const members: ChannelAccount[] = JSON.parse(req.body || '[]');
       const it = members[Symbol.iterator](); // Node does not support array.values() :(
       let member;
       while (member = it.next().value) {