I have built my first form api module. A user can select (a currency) from radio buttons and upon submit return to the previous product. In the modules submit hook I call a web service, write a couple of $_SESSION vars and redirect.
The problem is this module behaves differently in different settings.
On my wamp dev box everything works as expected.
On the linux production server everything works fine for the power user. However, it falls apart for anonymous users (I only have anonymous + power user).
Can anyone suggest why a module might not work for anonymous users (but work for authenticated) on a Linux server when it works fine for both users on WAMP?
Regards, Phil
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