I've noticed while testing a streaming HTTP service I'm building, that Internet Explorer does not display content until the connection is closed or until it receives a particular amount of data; I haven't been able to determine exactly what this amount is.
My HTTP service is implement as an ASP.NET Asynchronous HTTP Handler, where the connection is kept open and small chunks data are sent back to the client every few seconds. This doesn't appear to be a server issue because Chrome and Firefox begin displaying output immediately. I've read some posts which mention IE waits for 256 bytes in order to determine the mime type; however, these were old posts and this has probably changed in the latest version of IE.
Id like to know if there is some setting in IE which controls this or if there are headers I could send to prevent the initial buffering? I'm using the mime type text/plain.