feat: allow crumbs to be loaded on the server

example.js

@@ -1,4 +1,4 @@
-import Crumbs from "./lib";
+import Crumbs, { parseAccepted } from "./lib";
 
 document.addEventListener("DOMContentLoaded", () => {
   const editCookieButton = document.querySelector(".js-edit");

lib/index.js

@@ -3,14 +3,6 @@ import { editScreen } from "./components/editScreen";
 import { cookieBanner } from "./components/cookieBanner";
 import { TYPES } from "./constants";
 
-window.dataLayer = window.dataLayer || [];
-
-window.gtag =
-  window.gtag ||
-  function () {
-    dataLayer.push(arguments);
-  };
-
 /**
  * Formats an array of types by adding a summary to each type.
  * If a type does not have a summary, it uses the corresponding default consent type summary.
@@ -92,6 +84,18 @@ export default class Crumbs extends EventEmitter {
     this.render();
   }
 
+  gtag = (...params) => {
+    window.dataLayer = window.dataLayer || [];
+
+    window.gtag =
+      window.gtag ||
+      function () {
+        dataLayer.push(arguments);
+      };
+
+    window.gtag(...params);
+  };
+
   outdated() {
     return this.cookie.version < this.version;
   }
@@ -135,7 +139,7 @@ export default class Crumbs extends EventEmitter {
     const accepted = migration.call(this, this.cookie.value);
 
     // The migration returned null rather than a collection of consent, let's clear the cookie
-    if (accepted === null || !Array.isArray(accepted)) {
+    if (accepted == null || !Array.isArray(accepted)) {
       this.accepted = [];
       this.clear();
       return;
@@ -156,7 +160,7 @@ export default class Crumbs extends EventEmitter {
   };
 
   broadcast(type = "default") {
-    window.gtag(
+    this.gtag(
       "consent",
       type,
       this.types.reduce(
@@ -532,7 +536,10 @@ export default class Crumbs extends EventEmitter {
       ...this.accepted,
     ].join("|")};domain=${this.domain}${expiry}; path=/;SameSite=None; Secure`;
 
-    this.cookie = value;
+    this.cookie = {
+      value,
+      version: this.version,
+    };
   }
 
   /**