🐛 Désactive le suivi des actions sur Safari mobile

Uniquement pour les intégration iFrame. Relatif à #893.

Revert de 6d185e et 65a905

index.html

@@ -257,6 +257,22 @@
 		<% if (htmlWebpackPlugin.options.injectTrackingScript) { %>
 		<script type="text/javascript">
 			var _paq = window._paq || []
+			_paq.push([
+				function() {
+					var self = this
+					function getOriginalVisitorCookieTimeout() {
+						var now = new Date(),
+							nowTs = Math.round(now.getTime() / 1000),
+							visitorInfo = self.getVisitorInfo()
+						var createTs = parseInt(visitorInfo[2])
+						var cookieTimeout = 33696000 // 13 mois en secondes
+						var originalTimeout = createTs + cookieTimeout - nowTs
+						return originalTimeout
+					}
+					this.setVisitorCookieTimeout(getOriginalVisitorCookieTimeout())
+				}
+			])
+
 			/* tracker methods like "setCustomDimension" should be called before "trackPageView" */
 			_paq.push(['setDocumentTitle', document.domain + '/' + document.title])
 			_paq.push([
@@ -297,7 +313,7 @@
 		-->
 		<script src="https://polyfill.io/v3/polyfill.min.js?features=Intl.~locale.en%2CIntl.~locale.fr%2CIntersectionObserver"></script>
 		<% for (var chunk in htmlWebpackPlugin.files.chunks) { %>
-		<!-- <script nomodule src="<%= chunk %>.legacy.bundle.js"></script> -->
+		<script nomodule src="<%= chunk %>.legacy.bundle.js"></script>
 		<% } %>
 	</body>
 </html>

source/Tracker.ts

@@ -1,5 +1,5 @@
 import { History, Location } from 'history'
-import { debounce } from './utils'
+import { debounce, inIframe } from './utils'
 
 declare global {
 	interface Window {
@@ -10,12 +10,28 @@ declare global {
 type PushArgs = ['trackPageView'] | ['trackEvent', ...Array<string | number>]
 type PushType = (args: PushArgs) => void
 
+const ua = window.navigator.userAgent
+const iOSSafari =
+	(!!ua.match(/iPad/i) || !!ua.match(/iPhone/i)) &&
+	!!ua.match(/WebKit/i) &&
+	!ua.match(/CriOS/i)
+
 export default class Tracker {
 	push: PushType
 	unlistenFromHistory: (() => void) | undefined
 	previousPath: string | undefined
 
-	constructor(pushFunction: PushType = args => window._paq.push(args)) {
+	constructor(
+		pushFunction: PushType = args => {
+			// There is an issue with the way Safari handle cookies in iframe, cf.
+			// https://gist.github.com/iansltx/18caf551baaa60b79206. We could probably
+			// do better but for now we don't track action of iOs Safari user in
+			// iFrame -- to avoid errors in the number of visitors in our stats.
+			if (!(iOSSafari && inIframe)) {
+				window._paq.push(args)
+			}
+		}
+	) {
 		if (typeof window !== 'undefined') window._paq = window._paq || []
 		this.push = debounce(200, pushFunction) as PushType
 	}