Force accept all */* [REDMINE_ISSUE-16761]

onegeo_rproxy_mapstore2/rproxy.py

@@ -20,6 +20,7 @@ from django.conf import settings
 from drfreverseproxy.views import ProxyView
 from rest_framework.authentication import BasicAuthentication
 from rest_framework.authentication import SessionAuthentication
+from rest_framework.negotiation import DefaultContentNegotiation
 from rest_framework import permissions
 
 
@@ -35,6 +36,11 @@ class SessionCsrfExemptAuthentication(SessionAuthentication):
         pass
 
 
+class MapstoreProxyContentNegotiation(DefaultContentNegotiation):
+    def get_accept_list(self, _):
+        return ['*/*']  # Force accept all
+
+
 class MapstoreProxyView(ProxyView):
     upstream = ONEGEOSUITE_MAPSTORE_UPSTREAM
 
@@ -47,6 +53,8 @@ class MapstoreProxyView(ProxyView):
         permissions.AllowAny,
     ]
 
+    content_negotiation_class = MapstoreProxyContentNegotiation
+
     def get_request_headers(self):
         """
         Place le nom utilisateur dans un Header HTTP pour que Mapstore puisse