This example uses WebIO web page: webio.spi as target for request
webio.spi will accept WebIO URL query string commands yet only return a web page with text: "WebIO: Message Received"
This is useful for acknowledgement that WebIO received the command.
This example displays WebIO command response message in an iframe.
If message is not received, then it is assumed that WebIO did not get the X10 command message.
iFrame, WebIO Response:
note: This iframe can be made invisible using width and height of 0px