The problem with ScreenToSource() is that it is very slow on cloud installations - especially when typing !!

Solution

Go to the code of a field and move:

ScreenToSource FROM the embedded point "Whenever modifying..." TO the embedded point "Exit from..."

I am attaching an image to show it:

Don't remove ScreenToSource(), because the UI needs it, so users do not lose changes when switching between tabs.

This will be "fixed" in v4.02, but generally, opening a port on the cloud is dangerous and slow.

Of course, if you have "protection" and speed, it is OK, but take a look at the WEBDEV implementations also.

• Thanks to Saul Tejeda for reporting this

Steven Sitas