Issue
If your Firebox configuration includes a very large number of exceptions of a specific type, GET requests to the Firebox Management API to retrieve those exceptions might return these responses:
500 Internal Server Error504 Endpoint Request Timed Out
This issue occurs when the size of the response payload exceeds 10 MB. For example, if your Firebox configuration includes a very large number of blocked sites exceptions, requests to the GET /{v1}/configuration/{accountid}/exceptions/blockedsite endpoint in the API might return these error responses.
Workaround/Solution
v2 GET endpoints in the Firebox Management API support pagination. Use these v2 GET endpoints to retrieve the exceptions you want. For more information, go to the Firebox Management API documentation.