fix host

ereuse_devicehub/modules/oidc/views.py

@@ -268,14 +268,14 @@ class AllowCodeOidc4vpView(GenericMixin):
         db.session.add(code)
         db.session.commit()
 
-        host = app.config.get('HOST')
+        host = app.config.get('HOST', '').strip("/")
         if host == "localhost":
             url_init = "http://{host}:5000/allow_code_oidc4vp2?code={code}"
         else:
             url_init = "https://{host}/allow_code_oidc4vp2?code={code}"
 
         url = url_init.format(
-            host=app.config.get('HOST'),
+            host=host,
             code=code.code
         )
         return url