I've discussed this with Travis and probably Coleman on the old forum and/or in messages and I know you had at one time opened an internal issue for it, but it wasn't a priority at that time. Opening this issue so I can find out the current priority/status/if it will ever be fixed.
The https POST transaction isn't allowed to have query parameters (e.g., ?x=y&a=b...) with Connect IQ (at least the last time I tested it), however it is a legal protocol option, even if it is discouraged for security reasons, so it should be supported, as some servers do require it.
