Printing a webviewer content

Hello,

Since the background window via a button I display the model containing the WV google maps for location of a place and hang the script. Through the printer button control I get the printing dialog ... The contents of WV disappears just a  second and  I have only white printing ... Same on printing PDF

 

When the WV is displayed, if I use File/Print the map is printed.

Don't understand the difference and the error in my script

Set Variable [$ mod_depart, Value: Get (ModelName)]
Set Variable [$ ong_depart, Value: TopTabPanel_List]
Enable related records [From table: "adhts_indiv_tous" Using the model: "situation" (adhts_indiv_tous)]
[Show only related records; New Window]
Show / hide. Toolbars
[Hide]
Show / hide. strip text
[Hide]
adjust window
[Adjust the size to content]
Pause / Resume Script [Indefinitely]
Close Window [Current Window]
Layout [$ mod_depart]
Go to Object [Object Name: $ ong_depart]

Thanks for your help

Noël