The processing-prompt-delay Element

Syntax:

 <processing-prompt-delay>a_number_in_milliseconds</processing-prompt-delay>

[Default: 900]

It specifies the time, in milliseconds, to wait before prompting the user with a message indicating that an AU request is in processing at a server. If you click a button, its event listener takes a long time. A browser will show the "processing" message if it doesn't get an AU response in the specified time.