POST of JSON object

If you've already created an URL object, then on the

Security ›› Application Security: URLs: Allowed URLs: Allowed HTTP URLs ›› Allowed HTTP URL Properties

page, change from Basic to Advance. Then in the "default" item at the bottom of the panel you can change the Request Body Handling pulldown to "JSON" and select (or create) a JSON content profile.

If you haven't created the URL object yet, then you'd do the same on the

Security ›› Application Security: URLs: Allowed URLs: Allowed HTTP URLs ›› New Allowed HTTP URL...

page instead.

You may also need to click the "Methods Enforcement" tab and the "Override policy allowed methods" checkbox to be sure that POST is allowed.