||1000|long integer value representing milliseconds
A value, in milliseconds, indicating how long window-scoped values should remain valid in the session after a reload or redirect occurs. This allows for postbacks that might occur quickly after a reload or redirect to successfully retrieve the relevant window-scoped values.
|The default value was changed to 2500 millis as of EE 3.3.0.GA_P02 & 4.0. This is expected to be a better match for more real-word applications.|