Fix admin image urls

api/v1/serializers/config.py

@@ -41,7 +41,7 @@ class ConfigSerializer(serializers.ModelSerializer):
 
     def get_SCHOOL_LOGO_IMAGE(self, config):
         request = self.context.get('request')
-        http_host = request.META.get('HTTP_HOST')
+        http_host = request.META.get('HTTP_ORIGIN')
         if http_host and config.SCHOOL_LOGO_IMAGE:
             domain = urlparse(http_host).path.split(':')[0]
             SCHOOL_LOGO_IMAGE_url = 'http://' + domain + config.SCHOOL_LOGO_IMAGE.url
@@ -51,7 +51,7 @@ class ConfigSerializer(serializers.ModelSerializer):
 
     def get_MAIN_PAGE_TOP_IMAGE(self, config):
         request = self.context.get('request')
-        http_host = request.META.get('HTTP_HOST')
+        http_host = request.META.get('HTTP_ORIGIN')
         if http_host and config.MAIN_PAGE_TOP_IMAGE:
             domain = urlparse(http_host).path.split(':')[0]
             MAIN_PAGE_TOP_IMAGE_url = 'http://' + domain + config.MAIN_PAGE_TOP_IMAGE.url