You should check the THEME the layouts are using. I don't do much of anything WebDirect but seem to recall that the correct theme can make a world of difference with different browsers.
"It's interesting that these themes of crime and political corruption are always relevant." ~Martin Scorsese
… and it may also be considerate to build dedicated layouts for WebDirect since behaviour and rendering differs from that of PC.
1 = Mac OS
-2 = PC
3 = iOS
Though I assume that
4 = WebDirect.
You might need this for scripts, kind of
When ( Get (SystemPlattform) ) = 4)
Go to Layout [ MyWebdirectLayout ]
I would go one step further than the previous reccomendation to build different layouts.. build a separate file for webdirect.
Do not expect 100% perfect conversion from FM to WebDirect.
As you work with it you will begin to notice that their are even slight differences between browsers especially when you start trying to replicate text alignment in fields.
Start here with designing for web direct.
I would use a script on start of your solution. Go to Menu
File Options / Script Trigger
And set 'OnFirstWindowOpen [MyStartScript]'
The StartScript contains the Step
If [ Get(SystemPlattform) = 4 ]
Go to Layout [MyWebDIrect_Startwindow]
Go to Layout [MyPC_Layout]
Coherentkris idea is also intriguing and works fine if you have a solid data-separation model