SERVER APPARATUS, AND TERMINAL APPARATUS

For a web application which takes time to execute processing, Internet connection between a web browser and the web application needs to be maintained until the completion of processing. In a web application server which provides conversion processing from document data into print data, the conversion processing itself is provided as a software process asynchronous with the web application. The web application only accepts a conversion processing execution request. The progress is confirmed using Comet communication, and the web server delays a response to an HTTP request.