after reinstalling pwa, it seems to work better on dev env ...

config/sync/config_split.config_split.prod.yml

@@ -8,6 +8,8 @@ description: ''
 folder: ../config/prod
 module:
   matomo: 0
+  pwa: 0
+  pwa_extras: 0
 theme: {  }
 blacklist: {  }
 graylist: {  }

config/sync/core.extension.yml

@@ -150,6 +150,8 @@ module:
   printable: 0
   printable_pdf: 0
   profile: 0
+  pwa: 0
+  pwa_extras: 0
   recurring_period: 0
   redirect: 0
   redis: 0

config/sync/language/fr/pwa.config.yml

@@ -0,0 +1,5 @@
+description: 'L''inspiration par la matière'
+urls_to_cache: "/fr/pricing\r\n/fr/blabla\r\n/fr/base\r\n/fr/showrooms"
+start_url: /
+lang: fr
+cache_version: '1'

config/sync/pwa.config.yml

@@ -0,0 +1,20 @@
+site_name: materiO
+short_name: materiO
+description: 'The material library your projects deserve'
+start_url: /
+lang: fr
+theme_color: '#ffffff'
+background_color: '#ffffff'
+display: standalone
+default_image: '0'
+urls_to_cache: "/en/pricing\r\n/en/blabla\r\n/en/base\r\n/en/showrooms"
+urls_to_exclude: "admin/.*\r\nuser/.*"
+offline_page: /offline
+cache_version: '2'
+cross_origin: false
+skip_waiting: false
+_core:
+  default_config_hash: cP1TZQyv1WdET3iepl2QoyOPK7VeO0xHm0lU_FU1Wmc
+image: /sites/default/files/pwa/materiopwaicon.png
+image_small: /sites/default/files/pwa/materiopwaicon.pngcopy.png
+image_very_small: /sites/default/files/pwa/materiopwaicon.pngcopy2.png

config/sync/pwa_extras.settings.apple.yml

@@ -0,0 +1,23 @@
+touch_icons:
+  touch-icon-default: touch-icon-default
+meta_tags:
+  meta-capable: meta-capable
+  meta-status-bar-style: meta-status-bar-style
+color_select: black_translucent
+home_screen_icons:
+  iphone5-splash: iphone5-splash
+  iphone6-splash: iphone6-splash
+  iphoneplus-splash: iphoneplus-splash
+  iphonex-splash: iphonex-splash
+  iphonexr-splash: iphonexr-splash
+  iphonexsmax-splash: iphonexsmax-splash
+  ipad-splash: ipad-splash
+  ipadpro1-splash: ipadpro1-splash
+  ipadpro2-splash: ipadpro2-splash
+  ipadpro3-splash: ipadpro3-splash
+dependencies:
+  enforced:
+    module:
+      - pwa_extras
+_core:
+  default_config_hash: TOeFdF8Tjq2HqBmUgrTH06d7ZpY5qNLHZTLPIaCVsEk