Image tile HTTP requests

From World Wind Wiki

[edit] Compression

Wouldn't it be more natural to have the web server set content encoding on it's responses and have World Wind read those using HttpWebResponse.ContentEncoding (and decompress when needed)?

[edit] Conditional Gets and 403 Not Modified

For our dynamic layers.

Example: HTTP GET If-Modified-Since: Sat, 29 Oct 1994 19:43:31 GMT

If the file was modifed since DATE, server will send the file. If not, server will send a 403 Not Modified. WW can and needs to implement this in several areas (WMS server lists?, Modis?) Plus for our "dynamic" layers.