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Support Article

Multiple Window warning



Users are receiving multiple window warning frequently when they are submitting a item.

Error Messages

Mutiple window warning

Steps to Reproduce

Users sseing this warning on most of the cases

Root Cause

The root cause of this problem is defect/misconfiguration in the PRPC operating environment. 

End users are starting the PRPC application from another application that does a using a window name parameter of "PRPC_<AppName>"

Code new to PRPC in 6.3SP1 is reseting the window name to "" on the pxThread.pxWindowName property when a full user portal gets refreshed. This is required for a specific use case related to snap starting into PRPC. 

The window name at the browser level is still "PRPC_<AppName>" but the clibboard property pxThread.pxWindowName is now "". As the portal refreshes the Mutlitiple Window Warning logic will trigger and display. The Multiple Window Warning is required for all versions of PRPC before 7.1.X.


This issue is resolved through the following local change: 

There are two option here. 

1) When using to lauch PRPC 6.3SP1 use a window name of "".

2) Add the following Javascript code to the top panel of your end user portal:

function removeUnloadHandler()
function newUnloadHandler(){


Published January 31, 2016 - Updated October 8, 2020

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