diff --git a/cypress/integration/embauche/embauche.js b/cypress/integration/embauche/embauche.js
index 38c855da4..767981748 100644
--- a/cypress/integration/embauche/embauche.js
+++ b/cypress/integration/embauche/embauche.js
@@ -28,6 +28,21 @@ describe('Landing basic test', function() {
 	})
 })
 
+describe('Simulation saving test', function() {
+	it('should save the current simulation', function() {
+		cy.visit('/')
+		salaryInput('Salaire net').type('5471')
+		cy.contains('Autres').click()
+		cy.contains('passer').click()
+		cy.contains('passer').click()
+		// Wanted to use cypress.clock(), but can't because of piwik changing Date prototype (!)
+		cy.wait(1100)
+		cy.visit('/')
+		cy.contains('Retrouver ma simulation').click()
+		salaryInput('Salaire net').should('have.value', '5471')
+	})
+})
+
 describe('Iframe integration test', function() {
 	it('should display an iframe of the simulateur', function() {
 		cy.visit('/integration-test')
diff --git a/index.html b/index.html
index fcdf8c847..cf2a28d24 100644
--- a/index.html
+++ b/index.html
@@ -160,15 +160,12 @@
 	</script>
 
 
-
+	<script src="https://cdn.polyfill.io/v2/polyfill.min.js?features=default,Intl.~locale.en,Intl.~locale.fr,IntersectionObserver,fetch,Array.prototype.find,Object.values,Number.parseFloat,Array.prototype.includes,Object.entries,Object.values,Object.keys,Math.log2&unknown=polyfill"></script>
 	<script src="https://use.fontawesome.com/1da10bbdec.js"></script>
 	<script type="text/javascript">
 		if (/MSIE \d|Trident.*rv:/.test(navigator.userAgent)) {
 			// For ie, polyfill everything, as I can't figure what's going on, and which polyfill is missing...
 			document.write('<script src="https://cdn.polyfill.io/v2/polyfill.min.js?features=all"><\/script>');
-		} else {
-			document.write(
-				'<script src="https://cdn.polyfill.io/v2/polyfill.min.js?features=default,Intl.~locale.en,Intl.~locale.fr,IntersectionObserver,fetch,Array.prototype.find,Object.values,Number.parseFloat,Array.prototype.includes,Object.entries,Object.values,Object.keys,Math.log2&unknown=polyfill"><\/script>');
 		}
 	</script>
 
diff --git a/source/reducers/rootReducer.js b/source/reducers/rootReducer.js
index ee1724a28..f8bd01831 100644
--- a/source/reducers/rootReducer.js
+++ b/source/reducers/rootReducer.js
@@ -19,8 +19,8 @@ import computeThemeColours from 'Ui/themeColours'
 import { simulationTargetNames } from '../config.js'
 import defaultLang from '../i18n'
 import inFranceAppReducer from './inFranceAppReducer'
+import storageReducer from './storageReducer'
 import type { Action } from 'Types/ActionsTypes'
-
 // TODO : use context API instead
 function themeColours(state = computeThemeColours(), { type, colour }) {
 	if (type == 'CHANGE_THEME_COLOUR') return computeThemeColours(colour)
@@ -160,6 +160,7 @@ const existingCompanyReducer = (state, action) => {
 }
 export default reduceReducers(
 	existingCompanyReducer,
+	storageReducer,
 	combineReducers({
 		sessionId: defaultTo(Math.floor(Math.random() * 1000000000000) + ''),
 		//  this is handled by redux-form, pas touche !