diff --git a/src/components/webviews/CozyProxyWebView.functions.js b/src/components/webviews/CozyProxyWebView.functions.js
index adece7ad4..06c3bc0d3 100644
--- a/src/components/webviews/CozyProxyWebView.functions.js
+++ b/src/components/webviews/CozyProxyWebView.functions.js
@@ -1,9 +1,10 @@
-import { Platform } from 'react-native'
+import { Alert, Platform } from 'react-native'
 
 import Minilog from 'cozy-minilog'
 
 import { checkOauthClientsLimit } from '/app/domain/limits/checkOauthClientsLimit'
 import { showOauthClientsLimitExceeded } from '/app/domain/limits/OauthClientsLimitService'
+import { routes } from '/constants/routes'
 import { IndexInjectionWebviewComponent } from '/components/webviews/webViewComponents/IndexInjectionWebviewComponent'
 import { updateCozyAppBundleInBackground } from '/libs/cozyAppBundle/cozyAppBundle'
 import { getCookie } from '/libs/httpserver/httpCookieManager'
@@ -18,7 +19,9 @@ export const initHtmlContent = async ({
   href,
   client,
   dispatch,
-  setHtmlContentCreationDate
+  setHtmlContentCreationDate,
+  navigation,
+  t
 }) => {
   const cookieAlreadyExists = (await getCookie(client)) !== undefined
   log.debug(`Check cookie already exists: ${cookieAlreadyExists}`)
@@ -34,6 +37,22 @@ export const initHtmlContent = async ({
   const { html: htmlContent, source: htmlSource } =
     await httpServerContext.getIndexHtmlForSlug(slug, client)
 
+  if (htmlSource === 'offline') {
+    log.debug(
+      `Stop loading HTML because cozy-app ${slug} is not available for offline mode`
+    )
+    Alert.alert(
+      t('errors.offline_unsupported_title'),
+      t('errors.offline_unsupported_message'),
+      undefined,
+      {
+        cancelable: true
+      }
+    )
+    navigation.navigate(routes.home)
+    return
+  }
+
   if (
     !cookieAlreadyExists &&
     (await doesOauthClientsLimitPreventsLoading(client, slug, href))
diff --git a/src/components/webviews/CozyProxyWebView.js b/src/components/webviews/CozyProxyWebView.js
index 93b977c86..40210861c 100644
--- a/src/components/webviews/CozyProxyWebView.js
+++ b/src/components/webviews/CozyProxyWebView.js
@@ -1,4 +1,4 @@
-import { useFocusEffect } from '@react-navigation/native'
+import { useFocusEffect, useNavigation } from '@react-navigation/native'
 import React, { useCallback, useState, useEffect } from 'react'
 import { AppState, KeyboardAvoidingView, Platform, View } from 'react-native'
 
@@ -9,6 +9,7 @@ import { RemountProgress } from '/app/view/Loading/RemountProgress'
 import { initHtmlContent } from '/components/webviews/CozyProxyWebView.functions'
 import { CozyWebView } from '/components/webviews/CozyWebView'
 import { useHttpServerContext } from '/libs/httpserver/httpServerProvider'
+import { useI18n } from '/locales/i18n'
 
 import { styles } from '/components/webviews/CozyProxyWebView.styles'
 
@@ -23,6 +24,7 @@ export const CozyProxyWebView = ({
   wrapperStyle,
   ...props
 }) => {
+  const { t } = useI18n()
   const client = useClient()
   const httpServerContext = useHttpServerContext()
   const [state, dispatch] = useState({
@@ -34,6 +36,7 @@ export const CozyProxyWebView = ({
   const [htmlContentCreationDate, setHtmlContentCreationDate] = useState(
     Date.now()
   )
+  const navigation = useNavigation()
 
   const reload = useCallback(() => {
     log.debug('Reloading CozyProxyWebView')
@@ -73,7 +76,9 @@ export const CozyProxyWebView = ({
             href,
             client,
             dispatch,
-            setHtmlContentCreationDate
+            setHtmlContentCreationDate,
+            navigation,
+            t
           })
         } else {
           dispatch({
@@ -86,7 +91,7 @@ export const CozyProxyWebView = ({
     }
 
     void init()
-  }, [client, httpServerContext, slug, href])
+  }, [client, httpServerContext, navigation, slug, href])
 
   useFocusEffect(
     useCallback(() => {
diff --git a/src/locales/en.json b/src/locales/en.json
index fa102f77a..ce60ff7ad 100644
--- a/src/locales/en.json
+++ b/src/locales/en.json
@@ -13,6 +13,8 @@
     "badUnlockPassword": "The credentials you entered are incorrect, please try again.",
     "badUnlockPin": "The PIN you entered is incorrect, please try again",
     "contactUs": "A problem, a suggestion? Contact us at",
+    "offline_unsupported_title": "Unable to load",
+    "offline_unsupported_message": "This application is not available offline",
     "unknown_error": "An unexpected error occurred, please try again.",
     "reset": "Return to home",
     "showDetails": "Show error details",
diff --git a/src/locales/fr.json b/src/locales/fr.json
index abdc15504..b1b093ed5 100644
--- a/src/locales/fr.json
+++ b/src/locales/fr.json
@@ -13,6 +13,8 @@
     "badUnlockPassword": "Les identifiants que vous avez saisis sont incorrects, veuillez ré-essayer.",
     "badUnlockPin": "Le code PIN que vous avez saisi est incorrect, veuillez ré-essayer",
     "contactUs": "Un problème, une suggestion ? Contactez-nous à",
+    "offline_unsupported_title": "Chargement impossible",
+    "offline_unsupported_message": "Cette application n'est pas disponible hors connexion",
     "unknown_error": "Une erreur inattendue s'est produite, veuillez ré-essayer.",
     "reset": "Revenir à l'accueil",
     "showDetails": "Voir les détails de l'erreur",