FIX: Partial content may be sent to a client when anti-malware inspection is enabled in a Forefront Threat Management Gateway 2010 environment

Consider the following scenario in a Microsoft Forefront Threat Management Gateway (TMG) 2010 environment:

• You have an outgoing web proxy server that has anti-malware inspection enabled.
• The proxy server receives a client request HTML object from a slow web server.
• TMG uses the standard trickling delivery method to deliver the inspected object to the client.

In this scenario, the client may receive partial content from TMG. For example, if the client request was for an image such as a GIF or JPEG image, the client may receive only the first half of the image. If the client request was received by using JavaScript or by using a cascading style sheet file, the rendering on the client may be corrupted or formatted incorrectly.