Use random numbers instead of uuid.

package.json

@@ -52,8 +52,7 @@
     "auth-header": "^1.0.0",
     "@babel/runtime": "^7.0.0",
     "commander": "^2.11.0",
-    "isomorphic-fetch": "^2.2.1",
-    "uuid": "^3.1.0"
+    "isomorphic-fetch": "^2.2.1"
   },
   "devDependencies": {
     "@babel/cli": "^7.1.0",

src/__test__/ipc.spec.js

@@ -27,13 +27,13 @@ describe('Client', () => {
         expect(origin).toBe(parent.location.origin)
         const request = data['solid-auth-client']
         const { id, method, args } = request
-        expect(typeof id).toBe('string')
+        expect(id).toBeTruthy()
         expect(method).toBe('foo')
         expect(args).toEqual(['bar', 'baz'])
         child.postMessage(
           {
             'solid-auth-client': {
-              id: request.id,
+              id,
               ret: 'the return value!'
             }
           },
@@ -64,7 +64,7 @@ describe('Client', () => {
         expect(origin).toBe(parent.location.origin)
         const request = data['solid-auth-client']
         const { id, method, args } = request
-        expect(typeof id).toBe('string')
+        expect(id).toBeTruthy()
         expect(method).toBe('foo')
         expect(args).toEqual(['bar', 'baz'])
         child.postMessage(
@@ -79,7 +79,7 @@ describe('Client', () => {
         child.postMessage(
           {
             'solid-auth-client': {
-              id: request.id,
+              id,
               ret: 'the return value!'
             }
           },

src/ipc.js

@@ -1,5 +1,4 @@
 // @flow
-import uuid from 'uuid/v4'
 
 /*
   This module describes a simple IPC interface for communicating between browser windows.
@@ -8,15 +7,15 @@ import uuid from 'uuid/v4'
 
   const request = {
     'solid-auth-client': {
-      id: 'abcd-efgh-ijkl',
+      id: 1234,
       method: 'doSomethingPlease',
       args: [ 'one', 'two', 'three' ]
     }
   }
 
   const response = {
     'solid-auth-client': {
-      id: 'abcd-efgh-ijkl',
+      id: 1234,
       ret: 'the_value'
     }
   }
@@ -87,7 +86,7 @@ export class Client {
 
   request(method: string, ...args: any[]): Promise<any> {
     // Send the request as a message to the server window
-    const id = uuid()
+    const id = Math.random()
     this._serverWindow.postMessage(
       { [NAMESPACE]: { id, method, args } },
       this._serverOrigin