While working on a support case recently, i came across this issue wherein we were trying to publish an application and there was a warning message generated in the web monitor logs about "POST without Content-Type not Allowed" while accessing it from a client machine.
The issue was that the request does not contain a Content-Type header, and the method used in the request was POST. According to the configuration of Forefront UAG, POST without a Content-Type header is not allowed by default.
To allow POST requests without a Content-Type header for this application, do the following;
