fix(pageview): window is not defined (#308)

closes #307

Author: MatteoGabriele

src/api/disable.js

@@ -1,6 +1,11 @@
+import { isBrowser } from "@/utils";
 import { getOptions } from "@/options";
 
 const assignGlobalProperty = (id, value) => {
+  if (!isBrowser()) {
+    return;
+  }
+
   window[`ga-disable-${id}`] = value;
 };
 

src/api/pageview.js

@@ -1,7 +1,12 @@
 import { getOptions } from "@/options";
+import { isBrowser } from "@/utils";
 import event from "@/api/event";
 
 export default (param) => {
+  if (!isBrowser()) {
+    return;
+  }
+
   let template;
 
   if (typeof param === "string") {

test/api/pageview.spec.js

@@ -8,6 +8,7 @@ import flushPromises from "flush-promises";
 jest.mock("@/api/event");
 
 describe("pageview", () => {
+  const _window = window;
   const { location } = window;
 
   beforeAll(() => {
@@ -18,6 +19,10 @@ describe("pageview", () => {
     };
   });
 
+  beforeEach(() => {
+    global.window = _window;
+  });
+
   afterAll(() => {
     window.location = location;
   });
@@ -74,6 +79,20 @@ describe("pageview", () => {
     });
   });
 
+  test("track pageview without window", () => {
+    const localVue = createLocalVue();
+
+    localVue.use(VueGtag, {
+      config: { id: 1 },
+    });
+
+    delete global.window;
+
+    expect(() => {
+      pageview("/");
+    }).not.toThrow();
+  });
+
   describe("pageTrackerUseFullPath", () => {
     test("tracks using router `path` property", async () => {
       const localVue = createLocalVue();