Globals in snapshot are overriden by the V8 on start, so they have to be installed later (#4387)

tns-core-modules/globals/globals.d.ts

@@ -0,0 +1,4 @@
+/**
+ * Register globals such as setTimeout, setInterval, console etc.
+ */
+export function install();

tns-core-modules/globals/globals.ts

@@ -86,28 +86,39 @@ function registerOnGlobalContext(name: string, module: string): void {
     });
 }
 
+let snapshotGlobals;
+export function install() {
     if ((<any>global).__snapshot) {
-    // when we have a snapshot, it is better to pre-populate these on the global context to get them saved within the blob
+        if (!snapshotGlobals) {
+            // require in snapshot mode is cheap
             var timer: typeof timerModule = require("timer");
-    (<any>global).setTimeout = timer.setTimeout;
-    (<any>global).clearTimeout = timer.clearTimeout;
-    (<any>global).setInterval = timer.setInterval;
-    (<any>global).clearInterval = timer.clearInterval;
-
             var dialogs: typeof dialogsModule = require("ui/dialogs");
-    (<any>global).alert = dialogs.alert;
-    (<any>global).confirm = dialogs.confirm;
-    (<any>global).prompt = dialogs.prompt;
-
             var xhr = require("xhr");
-    (<any>global).XMLHttpRequest = xhr.XMLHttpRequest;
-    (<any>global).FormData = xhr.FormData;
-
             var fetch = require("fetch");
-    (<any>global).fetch = fetch.fetch;
+            var consoleModule = require("console");
-    (<any>global).Headers = fetch.Headers;
+
-    (<any>global).Request = fetch.Request;
+            snapshotGlobals = snapshotGlobals || {
-    (<any>global).Response = fetch.Response;
+                setTimeout: timer.setTimeout,
+                clearTimeout: timer.clearTimeout,
+                setInterval: timer.setInterval,
+                clearInterval: timer.clearInterval,
+
+                alert: dialogs.alert,
+                confirm: dialogs.confirm,
+                prompt: dialogs.prompt,
+
+                XMLHttpRequest: xhr.XMLHttpRequest,
+                FormData: xhr.FormData,
+
+                fetch: fetch.fetch,
+                Headers: fetch.Headers,
+                Request: fetch.Request,
+                Response: fetch.Response,
+
+                console: new consoleModule.Console()
+            }
+        }
+        Object.assign(global, snapshotGlobals);
     } else {
         registerOnGlobalContext("setTimeout", "timer");
         registerOnGlobalContext("clearTimeout", "timer");
@@ -119,16 +130,18 @@ if ((<any>global).__snapshot) {
         registerOnGlobalContext("XMLHttpRequest", "xhr");
         registerOnGlobalContext("FormData", "xhr");
         registerOnGlobalContext("fetch", "fetch");
-}
 
         // check whether the 'android' namespace is exposed
         // if positive - the current device is an Android 
         // so a custom implementation of the global 'console' object is attached.
         // otherwise do nothing on iOS - the NS runtime provides a native 'console' functionality.
-if ((<any>global).android || (<any>global).__snapshot) {
+        if ((<any>global).android) {
             const consoleModule = require("console");
             (<any>global).console = new consoleModule.Console();
         }
+    }
+}
+install();
 
 export function Deprecated(target: Object, key?: string | symbol, descriptor?: any) {
     if (descriptor) {

tns-core-modules/globals/package.json

@@ -4,4 +4,3 @@
   "types": "globals.d.ts",
   "nativescript": {}
 }
-

tns-core-modules/ui/frame/activity.android.ts

@@ -1,6 +1,11 @@
 import { setActivityCallbacks, AndroidActivityCallbacks } from "./frame";
+import * as globals from "../../globals";
 import * as appModule from "../../application";
 
+if ((<any>global).__snapshot) {
+    globals.install();
+}
+
 @JavaProxy("com.tns.NativeScriptActivity")
 class NativeScriptActivity extends android.app.Activity {
     private _callbacks: AndroidActivityCallbacks;