diff --git a/swh/web/settings/common.py b/swh/web/settings/common.py
index 2fdbc943..9126eced 100644
--- a/swh/web/settings/common.py
+++ b/swh/web/settings/common.py
@@ -1,291 +1,293 @@
-# Copyright (C) 2017-2019  The Software Heritage developers
+# Copyright (C) 2017-2020  The Software Heritage developers
 # See the AUTHORS file at the top-level directory of this distribution
 # License: GNU Affero General Public License version 3, or any later version
 # See top-level LICENSE file for more information
 
 
 """
 Django common settings for swh-web.
 """
 
 import os
 import sys
 
+from typing import Any, Dict
+
 from swh.web.config import get_config
 
 swh_web_config = get_config()
 
 # Build paths inside the project like this: os.path.join(BASE_DIR, ...)
 PROJECT_DIR = os.path.dirname(os.path.abspath(__file__))
 
 # Quick-start development settings - unsuitable for production
 # See https://docs.djangoproject.com/en/1.11/howto/deployment/checklist/
 
 # SECURITY WARNING: keep the secret key used in production secret!
 SECRET_KEY = swh_web_config['secret_key']
 
 # SECURITY WARNING: don't run with debug turned on in production!
 DEBUG = swh_web_config['debug']
 DEBUG_PROPAGATE_EXCEPTIONS = swh_web_config['debug']
 
 ALLOWED_HOSTS = ['127.0.0.1', 'localhost'] + swh_web_config['allowed_hosts']
 
 # Application definition
 
 INSTALLED_APPS = [
     'django.contrib.admin',
     'django.contrib.auth',
     'django.contrib.contenttypes',
     'django.contrib.sessions',
     'django.contrib.messages',
     'django.contrib.staticfiles',
     'rest_framework',
     'swh.web.common',
     'swh.web.api',
     'swh.web.browse',
     'webpack_loader',
     'django_js_reverse',
     'corsheaders'
 ]
 
 MIDDLEWARE = [
     'django.middleware.security.SecurityMiddleware',
     'django.contrib.sessions.middleware.SessionMiddleware',
     'corsheaders.middleware.CorsMiddleware',
     'django.middleware.common.CommonMiddleware',
     'django.middleware.csrf.CsrfViewMiddleware',
     'django.contrib.auth.middleware.AuthenticationMiddleware',
     'django.contrib.messages.middleware.MessageMiddleware',
     'django.middleware.clickjacking.XFrameOptionsMiddleware',
     'swh.web.common.middlewares.ThrottlingHeadersMiddleware'
 ]
 
 # Compress all assets (static ones and dynamically generated html)
 # served by django in a local development environment context.
 # In a production environment, assets compression will be directly
 # handled by web servers like apache or nginx.
 if swh_web_config['serve_assets']:
     MIDDLEWARE.insert(0, 'django.middleware.gzip.GZipMiddleware')
 
 ROOT_URLCONF = 'swh.web.urls'
 
 TEMPLATES = [
     {
         'BACKEND': 'django.template.backends.django.DjangoTemplates',
         'DIRS': [os.path.join(PROJECT_DIR, "../templates")],
         'APP_DIRS': True,
         'OPTIONS': {
             'context_processors': [
                 'django.template.context_processors.debug',
                 'django.template.context_processors.request',
                 'django.contrib.auth.context_processors.auth',
                 'django.contrib.messages.context_processors.messages',
                 'swh.web.common.utils.context_processor'
             ],
             'libraries': {
                 'swh_templatetags': 'swh.web.common.swh_templatetags',
             },
         },
     },
 ]
 
 
 DATABASES = {
     'default': {
         'ENGINE': 'django.db.backends.sqlite3',
         'NAME': swh_web_config['development_db'],
     }
 }
 
 # Password validation
 # https://docs.djangoproject.com/en/1.11/ref/settings/#auth-password-validators
 
 AUTH_PASSWORD_VALIDATORS = [
     {
         'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',  # noqa
     },
     {
         'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',  # noqa
     },
     {
         'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',  # noqa
     },
     {
         'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',  # noqa
     },
 ]
 
 
 # Internationalization
 # https://docs.djangoproject.com/en/1.11/topics/i18n/
 
 LANGUAGE_CODE = 'en-us'
 
 TIME_ZONE = 'UTC'
 
 USE_I18N = True
 
 USE_L10N = True
 
 USE_TZ = True
 
 # Static files (CSS, JavaScript, Images)
 # https://docs.djangoproject.com/en/1.11/howto/static-files/
 
 STATIC_URL = '/static/'
 # static folder location when swh-web has been installed with pip
 STATIC_DIR = os.path.join(sys.prefix, 'share/swh/web/static')
 if not os.path.exists(STATIC_DIR):
     # static folder location when developping swh-web
     STATIC_DIR = os.path.join(PROJECT_DIR, '../../../static')
 STATICFILES_DIRS = [STATIC_DIR]
 
 INTERNAL_IPS = ['127.0.0.1']
 
 throttle_rates = {}
 
 http_requests = ['GET', 'HEAD', 'POST', 'PUT', 'DELETE', 'OPTIONS', 'PATCH']
 
 throttling = swh_web_config['throttling']
 for limiter_scope, limiter_conf in throttling['scopes'].items():
     if 'default' in limiter_conf['limiter_rate']:
         throttle_rates[limiter_scope] = limiter_conf['limiter_rate']['default']
     # for backward compatibility
     else:
         throttle_rates[limiter_scope] = limiter_conf['limiter_rate']
     # register sub scopes specific for HTTP request types
     for http_request in http_requests:
         if http_request in limiter_conf['limiter_rate']:
             throttle_rates[limiter_scope + '_' + http_request.lower()] = \
                 limiter_conf['limiter_rate'][http_request]
 
-REST_FRAMEWORK = {
+REST_FRAMEWORK: Dict[str, Any] = {
     'DEFAULT_RENDERER_CLASSES': (
         'rest_framework.renderers.JSONRenderer',
         'swh.web.api.renderers.YAMLRenderer',
         'rest_framework.renderers.TemplateHTMLRenderer'
     ),
     'DEFAULT_THROTTLE_CLASSES': (
         'swh.web.common.throttling.SwhWebRateThrottle',
     ),
     'DEFAULT_THROTTLE_RATES': throttle_rates
 }
 
 LOGGING = {
     'version': 1,
     'disable_existing_loggers': False,
     'filters': {
         'require_debug_false': {
             '()': 'django.utils.log.RequireDebugFalse',
         },
         'require_debug_true': {
             '()': 'django.utils.log.RequireDebugTrue',
         },
     },
     'formatters': {
         'request': {
             'format': '[%(asctime)s] [%(levelname)s] %(request)s %(status_code)s', # noqa
             'datefmt': "%d/%b/%Y %H:%M:%S"
         },
         'simple': {
             'format': '[%(asctime)s] [%(levelname)s] %(message)s',
             'datefmt': "%d/%b/%Y %H:%M:%S"
         },
         'verbose': {
             'format': '[%(asctime)s] [%(levelname)s] %(name)s.%(funcName)s:%(lineno)s - %(message)s', # noqa
             'datefmt': "%d/%b/%Y %H:%M:%S"
         },
     },
     'handlers': {
         'console': {
             'level': 'DEBUG',
             'filters': ['require_debug_true'],
             'class': 'logging.StreamHandler',
             'formatter': 'simple'
         },
         'file': {
             'level': 'WARNING',
             'filters': ['require_debug_false'],
             'class': 'logging.FileHandler',
             'filename': os.path.join(swh_web_config['log_dir'], 'swh-web.log'),
             'formatter': 'simple'
         },
         'file_request': {
             'level': 'WARNING',
             'filters': ['require_debug_false'],
             'class': 'logging.FileHandler',
             'filename': os.path.join(swh_web_config['log_dir'], 'swh-web.log'),
             'formatter': 'request'
         },
         'console_verbose': {
             'level': 'DEBUG',
             'filters': ['require_debug_true'],
             'class': 'logging.StreamHandler',
             'formatter': 'verbose'
         },
         'file_verbose': {
             'level': 'WARNING',
             'filters': ['require_debug_false'],
             'class': 'logging.FileHandler',
             'filename': os.path.join(swh_web_config['log_dir'], 'swh-web.log'),
             'formatter': 'verbose'
         },
         'null': {
             'class': 'logging.NullHandler',
         },
     },
     'loggers': {
         '': {
             'handlers': ['console_verbose', 'file_verbose'],
             'level': 'DEBUG' if DEBUG else 'WARNING',
         },
         'django': {
             'handlers': ['console'],
             'level': 'DEBUG' if DEBUG else 'WARNING',
             'propagate': False,
         },
         'django.request': {
             'handlers': ['file_request'],
             'level': 'DEBUG' if DEBUG else 'WARNING',
             'propagate': False,
         },
         'django.db.backends': {
             'handlers': ['null'],
             'propagate': False
         },
         'django.utils.autoreload': {
             'level': 'INFO',
         },
     },
 }
 
 WEBPACK_LOADER = {
     'DEFAULT': {
         'CACHE': False,
         'BUNDLE_DIR_NAME': './',
         'STATS_FILE': os.path.join(STATIC_DIR, 'webpack-stats.json'),
         'POLL_INTERVAL': 0.1,
         'TIMEOUT': None,
         'IGNORE': ['.+\\.hot-update.js', '.+\\.map']
     }
 }
 
 LOGIN_URL = '/admin/login/'
 LOGIN_REDIRECT_URL = 'admin'
 
 SESSION_ENGINE = 'django.contrib.sessions.backends.cache'
 
 CACHES = {
     'default': {
         'BACKEND': 'django.core.cache.backends.locmem.LocMemCache'
     },
     'db_cache': {
         'BACKEND': 'django.core.cache.backends.db.DatabaseCache',
         'LOCATION': 'swh_web_cache',
     }
 }
 
 JS_REVERSE_JS_MINIFY = False
 
 CORS_ORIGIN_ALLOW_ALL = True
 CORS_URLS_REGEX = r'^/badge/.*$'