McAfee Gateway Is Blocking External API Requests

(Doc ID 2150919.1)

Last updated on NOVEMBER 20, 2017

Applies to:

Mobile Cloud Service - Version 16.1.3 and later
Information in this document applies to any platform.


Any call to an external API from within the mobile backend returns this message:
  "message": "Custom Code Problem in callback: SyntaxError: Unexpected token <"

Examining the logs, the following was found inside a large HTML document from McAfee Gateway:


The procedures described in Knowledge Base <> about server whitelisting were followed.

What is the cause of this problem?


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