Pass Username/Password to Roundcube?

[ontnugtering]

Hi,

I'd like to pass username and password to roundcube for automatic login. I wish something like this works: https://example.com/login.php?u=user&p=pass
Is that possible?

Basically this will be an URL displayed on a third ssl-website which will be clicked. Do you see any security problems except the typical grabbing problems on the client side?

Thanks
Michael