Fix admin images urls

api/v1/serializers/config.py

@@ -45,7 +45,7 @@ class ConfigSerializer(serializers.ModelSerializer):
         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
-            return request.build_absolute_uri(SCHOOL_LOGO_IMAGE_url)
+            return SCHOOL_LOGO_IMAGE_url
         else:
             return None
 
@@ -55,6 +55,6 @@ class ConfigSerializer(serializers.ModelSerializer):
         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
-            return request.build_absolute_uri(MAIN_PAGE_TOP_IMAGE_url)
+            return MAIN_PAGE_TOP_IMAGE_url
         else:
             return None