We have built multiple web app using Xojo 2021R2.1 that are broken when switching to Xojo 2021R3.
This code always fails in 2021R3 with “UnsupportedOperationException”.
dim context as WebSessionContext
context = New WebSessionContext(fMySession)
fMySession is a property of the WebPage that gets assigned during the Opening event to the current session.
It looks like a “fix” made a WebSessionContext in 2021R3 for bug report 60734 may have introduced a bigger bug. Hopefully, I’m wrong and there is a known work-around so I can use 2021R3.